JavaFX Controls and ComboBox

The ComboBox class creates a control that allows the user to select an option from a drop-down list of options. The drop-down list appears when the user clicks on the ComboBox control. When the number of options exceeds the size of the drop-down window, the user can scroll down to further options. This differs from the ChoiceBox which is primarily used when the number of choices is a relatively small set. Import Statement javafx.scene.control.ComboBox Constructors The ComboBox class has two constructors depending on whether you want to create an empty ComboBox object or one populated with items. To Create an Empty ComboBoxComboBox fruit new ComboBox(); To create a ComboBox object and populate it with String items from an ObservableList ObservableList fruits FXCollections.observableArrayList( Apple, Banana, Pear, Strawberry, Peach, Orange, Plum);ComboBox fruit new ComboBox(fruits); Useful Methods If you create an empty ComboBox object you can use the setItems method. Passing an ObservableList of objects will set the items in the Combobox. ObservableList fruits FXCollections.observableArrayList( Apple, Banana, Pear, Strawberry, Peach, Orange, Plum);fruit.setItems(fruits); If you want to add items to the ComboBox list later on you can use the  addAll method of the getItems method. This will append the items to the end of the options list: fruit.getItems().addAll(Melon, Cherry, Blackberry); To add an option to a particular place in the ComboBox option list use the add method of the getItems method. This method takes an index value and the value you wish to add: fruit.getItems().add(1, Lemon); Note: The index values of the ComboBox start at 0. For example, the above value of Lemon above will be inserted into the ComboBox option list at position 2 as the index passed is 1. To pre-select an option in the ComboBox options list, use the setValue method: fruit.setValue(Cherry); If the value passed to the setValue method is not on the list, then the value will still be selected. However, it does not mean this value has been added to the list. If the user subsequently picks another value then the initial value will no longer be in the list to be selected. To get the value of the currently selected item in the ComboBox, use the getItems method: String selected fruit.getValue().toString(); Usage Tips The number of options normally presented by the ComboBox dropdown list is ten (unless there are less than ten items in which case it defaults to the number of items). This number can be changed by using the setVisibleRowCount method: fruit.setVisibleRowCount(25); Again, if the number of items in the list is less than the value set in the setVisibleRowCount method the ComboBox will default to displaying the number of items in the ComboBox dropdown. Handling Events To track the selection of items on a ComboBox object you can use the addListener method of the selectedItemProperty method of the SelectionModel to create a ChangeListener It will pick up the change events for the ComboBox: final Label selectionLabel new Label();fruit.getSelectionModel().selectedItemProperty().addListener( new ChangeListener() { public void changed(ObservableValue ov, String old_val, String new_val) { selectionLabel.setText(new_val); }});

Horses Have Shaped History Essay - 807 Words

Horses are incredible creatures that have shaped history around the globe. There are over 150 different breeds of horses that have countless skills. Between their extraordinary intelligence and obedience, horses have worked at the mercy of humans for many different reasons. Their expertise ranges from being one of the fastest modes of transportation on land, to helping fight in wars, herd cattle and even serve as a source of recreation or sport (Duren). Horses have been present throughout all of history up until present day specifically in religions or cultures, war, and their uses in modern times. Horses exist in many different religions and cultures in history. In Greek mythology the god Poseidon, the god of the sea, created the†¦show more content†¦Their first use in battle is around 1500 BC when they were first used to pull chariots (Horse American). Horses were greatly used in the Trojan War and helped win the war. Although it was not a live horse, the Greeks created a massive wooden horse which they hid inside of and delivered to the gates of Troy. Despite some speculation that the Greeks’ horse must not be trusted, which is mentioned in The Aeneid as, â€Å"Have no faith in the horse!† (Virgil, The Aeneid, bk. 2, line 47) the Trojans allow the horse into their walls because they believe the wooden horse is an offering to Athena from the Greeks. Once inside the walls of Troy, the Greeks crawled out of what is now known as the Trojan horse and sacked Troy (Aeneid). Horses were also relied on in World War I, World War II (Edwards) and the war again st the U.S. and the Japanese in the Philippines. In WWI and the U.S. and Japanese war, they fought in battle and carried guns, ammunition, and people. Horses were even used in the form of an ambulance to help the wounded (Horse American). In WWII they mainly kept the same jobs except a significant amount of more horses died in WWII. 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Cost and Management Degree Program

Question: Discuss about theCost and Managementfor Degree Program. Answer: Costing Case Study Calculation of the Cost Per Student of Delivering a Particular Degree Program As mentioned in the article, the universities are essentially reluctant to divulge the overall costs that are incurred for delivering a specific degree program. However, the article intends to analyze whether the current fees are said to cover up all the costs incurred for delivering the degree. Again, as suggested in the new article, the universities expend more than what they actually receive as government grants along with the student fees, however, this does not go towards teaching. Nevertheless, the study conducted by the Deloitte Access Economics reveals the credible figure regarding the university spending and this suggested 5% to 10% of student financing as well as fees (NewsComAu, 2015). This funding was essentially directed away from teaching and was used to support the overall university research actions as a substitute. Again, the students in different deregulated system can be charged higher fees in order to make provisions for the universities to finance additional reso urces rather than augmenting the teaching or else other services for the students. As per the Australian Bureau of Statistics, almost 41% of university research financing in the year 2012 mainly comes from a resource that was not particularly from research. As per the reports of the Deloitte Access Economics report on the Higher education teaching as well as the learning costs, during the year 2010 is reported to be roughly around $15,000 to instruct a student in the universities examined (NewsComAu, 2015). Difficulties Associated to the Calculations As mentioned in the news article on How much does it actually cost universities to teach students?, the universities that the news.com.cu made a contact with did not respond properly or else refused to provide a numeric figure on the cost of delivering degree program to students stating the reason of difficulty of calculation. Despite widespread debate on the subject matter of the university deregulation and the need for the overall long-term sustainability, the universities are still unwilling to disclose the amount of cost incurred for delivering the degree to a student and for putting a particular student through a specific course (Bhimani et al., 2013). Therefore, this reluctance of the universities to reveal the figure on the cost acts an impediment in the enumeration of the costs. Again, owing to the absence of the cost evidence, universities cannot explain and support their argument in favour of the underfunding of different educational projects of the universities. Thus, unav ailability of the cost evidence can also act as a difficulty in the process of the enumeration of the cost (Deegan, 2013). As universities dont disclose the way the expend the money, this makes it challenging to figure out the total costs of the universities to educate all the students. Therefore, the unavailability of the requisite data from the authorized as well as authentic sources acts as a challenge of enumeration of the cost. Extent to Which Such Enumerations can Provide a Reliable Basis for Decision-Making The enumerations of the cost of delivering degree to students can in turn provide a substantial basis for decision-making. The administrators can decide the overall fees that need to be charged for covering the costs of teaching, research actions as well as other activities. Again, the absence of the appropriate evidences of costs leads to the lack of support for the argument put forward by the universities regarding the underfunding. However, strong evidences of the underfunding could have helped the universities to support their case and helped them to acquire the requisite funds for different research activities. This also acts an impediment for acquiring the grants from government. However, the decision regarding the acceptance of grants from the government and the amount that the administrators of the university can accept also depends on the enumeration of the overall cost (Horngren et al., 2013). In addition to this, the case study mentions that enumeration of the overall cost also help in the ascertainment of the fees that can be charged from the students both local as well as international tom cover up the entire costs (Asif et al., 2013). Again, the process of funding of different universities is frequently reduced and is not founded on the real costs that are required to deliver the entire courses (Drury, 2013).The enumeration is said to provide a reliable basis as it can also help in the process of review of the entire university sector. Mr Norton is in support of development of a balanced committee and it has refused to support the Go8 that requires compromise from different major parties. Again, the labour has the need to concede that there is a requirement for flexibility of the fee and on the other hand, the Liberals need to recognize that the complete deregulation is not completely reasonable. As such, all these require the enumeration of the cost for the ascertainment of the fees and ensuring the flexibility of the overall fee. As per the resu lts of the reports declared by Deloitte Access Economics report into Higher education teaching and learning costs in the present case study, the average cost is around $15,000 during the year 2010 to instruct student of all the universities investigated. The enumeration of the cost depends on different subjects and helps in deciding whether the fees of the student can help in covering the cost of the different courses that vary. Hence, fees from different students for diverse cheaper courses can be utilized to pay for the ones that are more costly. All these require too have the need for the enumeration of the overall costs (Carlsson et al., 2015). Decisions by Government on the Process of Financing of Universities and choices on Establishing Fees for Different Students As per the case study, it can be hereby ascertained that there are few available information sources that refer to the fact that the universities expend greater amount than what they acquire from different government funding as well as fees from the students. However, this does not necessarily indicate the fact that the money spent by the government is necessarily spent for teaching (Shepherd, 2015). As mentioned in the case study, the reports from the Australian Bureau of Statistics reveal the fact that the government financing as well as the fees of the overseas students contribute significantly towards funding of research. The governments deregulation legislation failed and this led to the review of the overall university sector. Reports also divulge the fact that costs vary depending on the university, as institutions that are more prestigious tend to spend more on research and this assists the to secure extremely regarded academics. This can augment the overall quality of teachi ng. However, despite what universities spend, the universities acquire the same amount of finances from the government for every course. However, the suggestions proposed by the deregulation models of Mr. Chapman, government contributions needs to be reduced as and when the fees are further increased. Corporate Social Responsibility is also known as CSR activities that are considered as the initiatives of the corporation for assessing and taking responsibility regarding the adverse affect of the operation of the firm on social and environmental well being (Carroll, 2015). Generally, the CSR activities are applied to the efforts that go beyond the required factors by the environmental protection and/ or regulators group. It has been found that the CSR activities are also considered as the corporate citizenship and this can be included within incurred short-term expenses, which do not give an urgent financial advantage to a particular organization. However, this also promotes positive environmental and social changes (Moon, 2014). On the other hand, the corporate social responsibility is also considered as the business practices that include the initiatives which provide advantages to the society (Kolk Muller, 2015). It has been noted that the CSR activities of a business are able to encompass a broaden variety of tactics, starting from a portion of the proceedings of the firm to charity in order to incorporate the greener operations within the business (Korschun, Bhattacharya Swain, 2014). From detailed analysis, it can be said that there are mainly few types of CSR activities that are usually practiced by the businesses of modern days. These include environmental efforts, philanthropy, ethical labor practices and volunteering. Philanthropy is defined as the business practices related to social responsibility where by donating to both local and national charities. Generally, the businesses possess various resources, which is able to provide benefit to programs of local community and charities. In addition to this, the environmental efforts are considered as one of the key focus of the CSR activities (Okpara Idowu, 2013). Thus, regardless of the size of the business, it has a huge carbon footprint. The method that have been considered for reducing the footprints are counted as good for both the society and company as a whole. It has been found that by attending the events of volunteer, information about the sincerity of the organization can be obtained. Thus, by doing good deeds, a particular company can express their concern towards the welfare of the society and the environment for specific issues. The particular company should do welfare of the society and the environment without expecting anything in return, then, this will only be considered as the CSR activity of the firm (Preuss, 2013). Moreover, the ethical labor practices are also considered as the CSR activities of the firm. The reason behind this is that by treating the staffs of an organization ethically and fairly, most of the firms are able to demonstrate their CSR activities for the welfare of the society and the environment (Lund-Thomsen Lindgreen, 2014). Nowadays, the corporate social responsibility is considered as an important factor for every organization. The reasons are firstly, it improves the image of the corporation in the eyes of the public, or it can also be said that this draws a different image of goodwill in the mind of the customers. It can also be said that the public image of an organization is considered as the mercy of the programs that are related to the social responsibilities and the methodologies by which the customers of the programs are alerted. Secondly, a strong CSR activity program helps to increase the probability of a firm to get media or news coverage (Servaes Tamayo, 2013). Lastly, the CSR activities assist a corporation to attract and to retain the productive and engaged staffs of the firm. Fourthly, this also retains and attracts investors. Additionally, it has been found that the non-profit organizations also earn benefit from CSR activities. These include investment through the programs of matchi ng gift, extended participation of volunteers, building partnerships among corporate and different revenue resources. Business Organization should majorly concern with Corporate Social Responsibility in comparison reacting on wealth maximization techniques (Zentes et al., 2016). The major objectives of any business organization lead towards justifications for an existence. In other words, commercial objectives rely mainly on making maximum possible profits for the key shareholders of business organization. Therefore, wealth accumulation relies upon as leading motivation for business course of action. This means economic responsibility of business in producing goods as well as services for society in selling for profit (Schneider Schmidpeter, 2012). Business aims at fulfilling primary responsibility concerning as economic units in major society. It is mainly observed that profit principles are based upon acceptable profits in transforming ways under Profit Maximization for any business organization (O'Shea et al., 2013). This is majorly endorsed by classical economic view concerning social responsibility of business organization. Modern theoretical as well as empirical analysis reveals that business firms engages strategically for acting as social responsible activities for increasing profits as far as possible. This reveals business firm stakeholders values upon bringing together social efforts in an overall manner. Business organization aims at obtaining additional benefits from attributes such as firm reputation enhancement as well as ability in generating profits. This helps in differentiating with related product as well as ability in attracting highly qualified personnel for extracting premium of its products (Mirvis, 2012 ). There is much point in case of ethical theory as defined in actual goods sold. In other words, there requires ethical reasoning in case of making trade-offs as well as resolving dilemmas at the same time (Clapp Rowlands, 2014). This develops field of ethics in maximization of individual utilities in implying with theories for future analysis purpose. Corporate Social Responsibility and profits has narrow versions for greater notion. In other words, Corporate Social Responsibility increases with profits as referred for any business organization. Empirical studies suggest that Corporate Social Responsibility largely affects profitability for exploring the relationships in an effective way (Brief et al., 2016). Corporate Social Responsibility considers as the doctrine promoting expansion of social stewardship by most of business organization (Zentes et al., 2016). In other words, Corporate Social Responsibility suggests ways whereby Business Corporations embraces responsibilities in to wards set of key stakeholders. These key stakeholders involve customers as well as employees and large communities (O'Shea et al., 2013). CSR activities take into consideration charitable giving in case to community programs as well as commitment towards environmental sustainability projects for nurturing diverse and safe workplace. There are some of the popular examples regarding Corporate Social Responsibility conducted by any business organization. Most of the business organization practices various forms of Corporate Social Responsibility in making it core for its operational activities (Clapp Rowlands, 2014). For Example, Ben and Jerry make use of fair trade ingredients and develop proper sustainability programs from dairy firms at Vermont. Other examples include Starbucks creating Caf practice guidelines for ensuring company sources on sustainable growth activities. This means processing coffee in case of evaluating for economic as well as social and environmental aspects for coffee production. For the company Tom Shoes donates one pair of shoes to child who need it (Schneider Schmidpeter, 2012). At the end of the study, it is concluded that Business Organization aims at profit maximization and cost minimization theories. These approaches are used by business organization as sustainable approach for maximizing profits acting for best interest of employees as well as environment and communities. This essay majorly focuses on understanding regarding different concepts of Corporate Social Responsibility as well as adoption of CSR for the purpose of attainment of profit maximization by any business organization. References Asif, M., Searcy, C., Zutshi, A., Fisscher, O. A. (2013). An integrated management systems approach to corporate social responsibility.Journal of Cleaner Production,56, 7-17.. Bhimani, A., Horngren, C. T., Datar, S. M., Rajan, M. (2013).Management and Cost Accounting: UEL. Pearson UK. Brief, A., o f Conduct, C., Policy, C. S. R., Bribery, A., Policy, C., Mix, P., ... Policy, P. A. (2016). Corporate Social Responsibility. Issues. Carlsson, B., Meir, M., Rekstad, J., AS, A., Piekarczyk, A., Wei, R., ... Prei, D. (2015). adopting a total cost accounting approach. Carroll, A. B. (2015). Corporate social responsibility. Organizational Dynamics, 44, 87-96. Clapp, J., Rowlands, I. H. (2014). Corporate social responsibility. Essential Concepts of Global Environmental Governance, 42. Deegan, C. (2013).Financial accounting theory. McGraw-Hill Education Australia. Drury, C. M. (2013).Management and cost accounting. Springer. Horngren, C. T., Sundem, G. L., Schatzberg, J. O., Burgstahler, D. (2013).Introduction to management accounting. Pearson Higher Ed. Kolk, A., Muller, A. (2015). Responsible Tax as Corporate Social Responsibility. Korschun, D., Bhattacharya, C. B., Swain, S. D. (2014). Corporate social responsibility, customer orientation, and the job performance of frontline employees. Journal of Marketing, 78(3), 20-37. Lund-Thomsen, P., Lindgreen, A. (2014). Corporate social responsibility in global value chains: Where are we now and where are we going?.Journal of Business Ethics,123(1), 11-22. Mirvis, P. H. (2012). Corporate Social Responsibility. The Encyclopedia of Human Resource Management: Short Entries, 153-159. Moon, J. (2014).Corporate social responsibility: A very short introduction. OUP Oxford. NewsComAu. (2015).What a university education actually costs. [online] Available at: https://www.news.com.au/finance/economy/how-much-does-it-actually-cost-universities-to-teach-students/news-story/f6f754409eabcfa336d807e0cb479647 [Accessed 14 Oct. 2016]. Okpara, J. O., Idowu, S. O. (2013). Corporate Social Responsibility. Springer Berlin Heidelberg. O'Shea, M., Alonso, A. D., Krajsic, V., Hassanien, A., Dale, C. (2013). Corporate social responsibility. Facilities management and development for tourism, hospitality and events, 147-164. Preuss, L. (2013). Corporate social responsibility. In Encyclopedia of corporate social responsibility (pp. 579-587). Springer Berlin Heidelberg. Schneider, A., Schmidpeter, R. (2012). Corporate social responsibility. Verantwortliche Unternehmensfhrung in der Praxis, Berlin ua. Servaes, H., Tamayo, A. (2013). The impact of corporate social responsibility on firm value: The role of customer awareness. Management Science, 59(5), 1045-1061. Shepherd, R. W. (2015).Theory of cost and production functions. Princeton University Press Zentes, J., Morschett, D., Schramm-Klein, H. (2016). Corporate Social Responsibility. In Strategic Retail Management (pp. 207-226). Springer Fachmedien Wiesbaden.

Essay On Blue Whales Example For Students

Essay On Blue Whales Balaenoptera Musculus, or the blue whale, is the largest mammal in the world. This enormous mammal can grow to be 110 feet long and weigh as much as 190 tons. Thats longer than two city buses and the total weight of 30 elephants. This giant is powered by a heart the size of a taxi-cab. The blue whales of the Antarctic grow larger than those of the Northern Hemisphere. Also, the females tend to be slightly larger than the males of the same age. These mammals are bluish-gray in color, with some paler spots. Algae tends to accumulate on their bellies causing a yellowish or mustard color. It has a mottled appearance with a broad, flattened U-shaped head. Fifty to ninety throat grooves run from the mouth to the belly. Instead of teeth, blue whales have 270 to 400 black baleen plates on each side of their mouths. These plates are about forty inches long and twenty-two inches wide. The blue whale has a tiny, stubby dorsal fin set far back on its body. It has a 20 foot wide, slightly notched , triangular flukes, which is propelled by an extremely thick tail stock. The flippers on this creature are long and slender, and are about one-seventh of the whales body length. The blue whales most prominent feature is its exceptionally fleshy splashgaurd, which surrounds the blowholes at the front and sides. This whale spouts a single slender jet that soars forty to fifty feet high. The blue whale has very poor eyesight, no sense of smell, and has no sense of taste. However, the blue whale does have well-developed senses of touch and hearing. This large mammal has a life span of about eighty years. At this time there is not too much known about the blue whales behavior. Blowing and diving patterns vary according to the whales activity. The blue whale blows every ten to twenty seconds for a total of two to six minutes, when relaxed, and then dives. They usually stay submerged for five to twenty minutes, but can stay under for up to 40 minutes. Blue whales usually dive to around 490 feet, but can go deeper if need be. When swimming slowly, the whale rises at a shallow angle. He blows as soon as the head begins to brake the surface. The head disappears below the surface and a long expanse of the back rolls into view. The dorsal fin normally appears some time after the blow has dispersed and the head has disappeared. The dorsal fin is visible only briefly before the whale arches its back in preparation for the dive. Sometimes the whale arches its tail stock, but often simply sinks below the surface. The blue whale can accelerate to speeds of over 19 miles per hour when it is being chased, but usually he swims much slower. Adult whales rarely, if ever, breach clear of the water. Youngsters, however, have been observed breaching at an angle of 45 degrees, and landing on their stomachs or sides. Blue whales are close knit and are usually found in groups of 1-5. You may see up to 30 whales gathered at the feeding grounds. Most feeding seems to take place during the evening and early morning. The whales produce ultrasonic chirps and whistles when feeding. They use a low frequency moan to call to each other. This mammal uses its powerful muscles in the tail to drive the great fan-shaped blades (flukes) up and down to propel itself through the water. It takes him very little energy to swim. Their bodies are designed better than man-made missiles or submarines. They have a fine oil that lubricates their smooth, thin skin and reduces friction. Blue whales have extremely flexible and marvelously streamlined bodies that help them glide through the water without a ripple. Their bones are light and spongy, making them naturally buoyant. They neither rise nor sink, but can stay at any given depth without any effort. Dorsal fins and flippers give the whale stability and keep them right side up. The flippers rotate at the shoulders and are used for steering and braking. .u8860c5aa62c1ffc5937e0795daea7bea , .u8860c5aa62c1ffc5937e0795daea7bea .postImageUrl , .u8860c5aa62c1ffc5937e0795daea7bea .centered-text-area { min-height: 80px; position: relative; } .u8860c5aa62c1ffc5937e0795daea7bea , .u8860c5aa62c1ffc5937e0795daea7bea:hover , .u8860c5aa62c1ffc5937e0795daea7bea:visited , .u8860c5aa62c1ffc5937e0795daea7bea:active { border:0!important; } .u8860c5aa62c1ffc5937e0795daea7bea .clearfix:after { content: ""; display: table; clear: both; } .u8860c5aa62c1ffc5937e0795daea7bea { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u8860c5aa62c1ffc5937e0795daea7bea:active , .u8860c5aa62c1ffc5937e0795daea7bea:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u8860c5aa62c1ffc5937e0795daea7bea .centered-text-area { width: 100%; position: relative ; } .u8860c5aa62c1ffc5937e0795daea7bea .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u8860c5aa62c1ffc5937e0795daea7bea .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u8860c5aa62c1ffc5937e0795daea7bea .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u8860c5aa62c1ffc5937e0795daea7bea:hover .ctaButton { background-color: #34495E!important; } .u8860c5aa62c1ffc5937e0795daea7bea .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u8860c5aa62c1ffc5937e0795daea7bea .u8860c5aa62c1ffc5937e0795daea7bea-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u8860c5aa62c1ffc5937e0795daea7bea:after { content: ""; display: block; clear: both; } READ: Love In The Great Gatsby EssayBlue whales descend from early land mammals. Millions of years ago the richness of life in the sea lured them to water. Aquatic life gradually changed their physical characteristics. Today, they spend most of their time in the Arctic and Antarctic Oceans, where the plankton is plentiful. In winter, the whales migrate to the warm waters of the tropics. Food in the tropics is scarce, so the whales depend on their thick layer of blubber for nourishment. They migrate to the polar regions in the spring, and move to open seas in the fall to spend winter. The blue whale is patchily distributed worldwide, mainly in the cold waters and the open seas. There are three main populations of blue whales.Theyre located in the North Atlantic, North Pacific, and the Southern Hemisphere. Most of the whales live in the southern hemisphere, but are often found in the Gulf of California, the Gulf of Lawrence, in Canada, and the Northern Indian Ocean. Blue whales feed exclusively on krill and zooplankton. The eat about eight tons of krill a day. The whale gulps its food in great mouthfuls of sea soup. The mouth and baleen work together as a strainer, holding as much as five tons of water and krill with each mouthful. The throat grooves expand and contract to hold this vast amount of sea soup. The whale forces the water out through the baleen, which traps the krill in the baleen bristles. He then uses his fleshy tongue to lick the krill off the bristles. His stomach can hold up to nine tons of food. The mammal is at the top of the ocean food chain but sometimes, if sick or injured, the are attacked by killer whales. Mating occurs in the summer, in the warm waters of the tropics. Sometimes ship radio signals interfere with the mating calls of the whales. The blue whale sexually matures at ten years of age. The blue whale, like other mammals, gives birth to live young. The gestation period lasts for 11 months. The mother gives birth to a single calf, rarely twins, every two years. Other females help deliver the calf and nudge the newborn to the surface for its first breath of air. The calf is 24 feet long and weighs tow tons at birth. The calf is nursed for about one year. It drinks more than 160 gallons of milk per day. In its first year the calf gains nine kilograms per day. The mother whale is highly protective of her baby and stays close to it for the first year of its life. The only predator of the huge blue whale is man. Population figures for the worlds largest creature differ, but the endangered animal appears to be inching away from extinction. When the commercial whaling of the blue whale was banned in 1966, the species was close to being wiped out. Whalers hunted the whales for their blubber. The blubber was boiled to remove the whale oil. The oil was than used in soap, tallow, glycerin, edible fats, machine oil, and fine grease. It was also used for tanning, waterproofing, chamois leather, and paint oils. The whale meat was eaten in the Mediterranean and the Far East. They also extracted glue and gelatin from the tissues, Vitamin A from the liver, insulin from the pancreas, and ACTH from the pituitary gland. The whales giant lower jawbone was used as an arch to support the roof of homes for the Eskimos and other hunters. Bones and teeth provided materials for their weapons, tools, and household utensils. For the next century, whalers vigorously pursued the blue whale and depleted its populations, first in the North Atlantic, then the North Pacific, and finally in its region of greatest abundance, the southern oceans. There perhaps 190,000 blue whales once roamed. The hunt reached its peak in the Antarctic summer of 1931 with the killing of 29,400 blue whales. Never again were whalers able to find so many blue whales to kill. .u5a0c5eed267419658f2dbf8bf316c3ee , .u5a0c5eed267419658f2dbf8bf316c3ee .postImageUrl , .u5a0c5eed267419658f2dbf8bf316c3ee .centered-text-area { min-height: 80px; position: relative; } .u5a0c5eed267419658f2dbf8bf316c3ee , .u5a0c5eed267419658f2dbf8bf316c3ee:hover , .u5a0c5eed267419658f2dbf8bf316c3ee:visited , .u5a0c5eed267419658f2dbf8bf316c3ee:active { border:0!important; } .u5a0c5eed267419658f2dbf8bf316c3ee .clearfix:after { content: ""; display: table; clear: both; } .u5a0c5eed267419658f2dbf8bf316c3ee { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u5a0c5eed267419658f2dbf8bf316c3ee:active , .u5a0c5eed267419658f2dbf8bf316c3ee:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u5a0c5eed267419658f2dbf8bf316c3ee .centered-text-area { width: 100%; position: relative ; } .u5a0c5eed267419658f2dbf8bf316c3ee .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u5a0c5eed267419658f2dbf8bf316c3ee .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u5a0c5eed267419658f2dbf8bf316c3ee .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u5a0c5eed267419658f2dbf8bf316c3ee:hover .ctaButton { background-color: #34495E!important; } .u5a0c5eed267419658f2dbf8bf316c3ee .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u5a0c5eed267419658f2dbf8bf316c3ee .u5a0c5eed267419658f2dbf8bf316c3ee-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u5a0c5eed267419658f2dbf8bf316c3ee:after { content: ""; display: block; clear: both; } READ: Inflation Persuasive EssayThe movement to save the worlds whales began more than 30 years ago when scientists began to understand whale behavior. Biologists believe that the blue whale is finally on the rebound, in at least one corner of the worlds oceans. During a 1991 ship survey off the coast of California, it was reported that there was a dramatic increase in the number of blue whales. They believe that there are more than 2,050 blue whales feeding in the Pacific Ocean off California alone. This is up from the 1974 estimate of 1600 blue whales. Scientists assume that the population of blues now feeding off California migrates south to warmer waters off Baja or Mexico, during winter. The blue whale was listed as endangered as soon as the U.S. Endangered Species Act took effect in 1973. Since the blue whale deadly encounters with whalers ended, blues have seldom crossed paths with humans. Direct and indirect interactions with humans are believed to be hindering recovery of the whale population. Among them are collisions with ships, entanglements in fishing gear, oil spills, pollution, coastal development, and human generated noise in the oceans. Yet the blue whale is increasing in visibility and in numbers off the California coast. There seems to be little good news about blue whales coming from the rest of the worlds oceans. California waters may now represent some of the most critical large whale habitats in the world. Bibliography:Bibliograpghy1.Boitani, Luigi and Bartoli, Stefania 1983. Simon and Schusters Guide to Mammals. NewYork: Simon ; Schuster Inc., p.237. 2.Singing Blues for the Blues. U.S. News and World Report, July 3, 1989 vol 107, n 1; pp.8 and 9. 3.Leatherwood, Stephen and Reeves, Randall 1983. The Seirra Club Handbook of Whales and Dolphins. San Francisco: Seirra Club Books, pp. 47-51. 4.Sattler, Helen Roney 1987. Whales, the Nomads of the Sea. New York: Lothrop, Lee and Shepard Books; pp. 17, 28, 62-63. 5.Carwardine, Mark 1985. Whales, Dolphins, and Porpoises. New York: Dorling Kindersley Publishing, Inc., pp.68-71. 6.Lockley, Ronald M. 1979. Whales, Dolphins, and Porpoises. NewYork: W.W. Norton and Co., Inc. p. 88. 7.Baskin, Yvonne.Blue Behemoth Bounds Back. Bio Science, October 1993, vol 43, n 9; pp. 603-606.