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Summary of endangered manatee
Manatees conservation essay
Manatees conservation essay
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Manatees, or sea cows, are quite different creatures of the sea. Not only do they swim slowly and awkwardly, they tend to have a rather awkward appearance to accompany this behavior. Even though many haweve heard about these majestic marine mammals, few understand everything there is to know about them. There are three main types of manatees: the West African manatee, the Amazonian manatee, and the West Indian manatee. The West Indian manatees themselves can be divided into multiple subspecies: the American, Antillean, Caribbean, North American, and Florida manatees. Though there are several kinds of manatees, the West Indian manatee is the most well known in North America.
The taxonomy (Appendix A) of the manatee begins with the kingdom Animilia. After the kingdom, comes the phylum Chordata, and then the class of Mammilia, which is a combination of the human population and most vertebrates. The connection with other mammals ends there. The manatees are then put into a much smaller order, which consists of only three species (one being extinct), with the name of Sirenia. This order obtained its name because of the thought that they looked like Greek mythological creatures called Sirens or mermaids. Biochemical analysis of proteins has been used to determine the distinct relatives of the manatees. These relatives include elephants, aardvarks, and hyraxes. The similarities between these mammals include the lack of collarbone and having nails instead of claws. Adding on to this belief of these mammals being related, evolutionists believe that manatees actually evolved from some kind of wading, plant eating animal (Save the Manatees Club).
The exterior anatomy (Appendix B) of a manatee is not as complex as one would think. It i...
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Ceratopsians and Pachycephalosaurs are closely related in their characteristics. Ceratopsians processed a saddle-shaped boney frill that extended from the skull to the neck and typically had horns over the nose and eyes. The most popular was the triceratops, which could reach over 26 feet and weigh in excess of twelve metric tons. Their frills served as two major functions. It protected the vulnerable neck from being harmed. The second major function that the frill provided was due to the fact that the frill contained a network of blood vessels on its underside, which were used as a means to get rid of excess heat. The Pachycephalosaurs were considered to be bipedal. They were also found to have thick skulls, flattened bodies, and tail that were covered in an array of body rods. Pachycephalosaurs were thought to have been more than fifteen feet long and processed a skull that was surrounded by a rounded dome of solid bone. It was thought that they used their heads in combat or mating contests, but that was disproved fairly recently, which I will discuss later in the paper. Both Ceratopsians and Pachycephalosaurs were “bird-hipped” and both of these suborders contained a backwards pubic bone. Both were Marginocephilia, or “fringed heads”, which is one of three clads under the Orinthiscia order. They were also herbivore dinosaurs that inherited their fringe at the back of the skull from earlier ancestors.(2) Their classi...
Nelson, H., Walker, M., Zackher, B., & Mitchell, J. (n.d.). Result Filters. National center for biotechnology information. Retrieved February 9, 2014, from http://www.ncbi.nlm.nih.gov/pubmed?LinkName=pubmed_pubmed_pmh_cited&from_uid=15233153
Manatees, commonly called Sea Cow, are large aquatic mammals that are found in warm coastal areas, rivers and warm water springs in the Amazon Basin, West Africa, the Gulf of Mexico, the Caribbean Sea and the Southeastern United States. Manatees can be found in salt water, fresh water and brackish water. They spend most of their time eating aquatic plants, resting, migrating and nurturing their young. The manatee species has evolved over the last 45 million years. The adult manatee evolved into an average of approximately 10 feet long and weighs between 800 and 1,200 pounds (Site This).
A bottlenose dolphin, Tursiops truncates, has a streamlined body. A dolphin's outer skin layer (epidermis) is about 10 to 20 times thicker than the...
The author of the article states, according to the U.S. Fish and Wild Life Service, it estimated that 6,350 manatees reside along the coastal Southeastern states, a count that led the
Schulman, Joshua M., and David E. Fisher. "Abstract." National Center for Biotechnology Information. U.S. National Library of Medicine, 28 Aug. 0005. Web. 24 Apr. 2014.
The origin of modern day whales, a mystery that has puzzled paleontologists for years, may have just been solved with the discovery of an ankle bone. This discovery might sound simple and unimportant, but the bones of these ancient animals hold many unanswered questions and provide solid proof of origin and behavior. The relationship between whales and other animals has proven to be difficult because whales are warm-blooded, like humans, yet they live in the sea. The fact that they are warm-blooded suggests that they are related to some type of land animal. However, the questions of exactly which animal, and how whales evolved from land to water, have remained unanswered until now.
The manatee is a large, bulky aquatic mammal with flippered forelimbs and a spatula-shaped tail. Manatees can grow to 12 feet in length and weigh up to 3500 pounds. They may live to be 50 years old. It might be very difficult to imagine, but manatees (also known as 'sea cows') share a common ancestor with elephants, but did not evolve from the elephant, the elephant is considered the manatee's closest living relative. The manatee's vaguely human-like face is sometimes described as one only a mother could love. Indeed, it is difficult to understand how sailors ever mistook a manatee for a beautiful
Gould, Edwin, George McKay, and David Kirshner. Encyclopedia of Mammals. San Francisco, CA: Fog City, 2003. Print.
A group of scientists from North Carolina and Oregon used medical technology to search an iron-stained concretion inside the specimen’s chest. With the assistance of imaging equipment and software, they were able to reconstruct 3-dimensional structures through the interior of the concretion. The images reveal a heart that was more like that of a bird or a mammal than those of reptiles, significantly adding to evidence suggesting that at least some dinosaurs had high metabolic rates. In addition, the heart appears to have been four chambered with a single aorta, which is most commonly found in mammals or birds.
...emale leatherback turtle and her habits in order to fully understand this critically endangered marine animal.
"Result Filters." National Center for Biotechnology Information. U.S. National Library of Medicine, n.d. Web. 25 Apr. 2014.
Segal, E. A., Cimino, A. N., Gerdes, K. E., Harmon, J. K., & Wagaman, M. (2013). A
Barbour, Roger W. and Ernst, Carl H. Turtles of the United States. Lexington: The Universty Press of Kentucky, 1972. Print
The Red-eared slider (Trachemys scripta elegans) is a semi-aquatic turtle belonging the the Emydidae family. They are titled the Re...