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John Updike. ... ("Updike,John 413). John Updike started to attend public schools in
Shillington in 1936; he continued to attend schools in Shillington until 1950. ...
The Life And Great Works Of John Updike. ... John Updike, a writer that gave his all
and left an impression on the reading world that will never be forgotten. ...
John Updike's Works. Existence ... John Updike implements his philosophies and ideals
in a way that brings together existence with meaning. "Updike ...
John Updike. "But for a few phrases ... of accomplishments. John Hoyer Updike was
born on March 18, 1932 in Reading, Pennsylvania. He was son ...
Review Of John Updike's Review "it Was Sad". Review of John Updike's Review
"It Was Sad" I chose to review John Updike's Review "It ...
Submitted by jemnbam on March 7, 2005
Category: Biographies
Words: 1202 | Pages: 5
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Evolution of Sirenia
Many scientists believe that sirenians evolved around fifty-five million years ago from small hoofed animals. The closests living relatives today are elephants and small asian mammals called hyraxes. Although there are vast differences between elephants, hyraxes, and sirenians, fossil evidence shows that all three evolved from a common ancestor. The manatee's physical characteristics are visible remnants of their ancient heritage. The dugong's tusks are another link to elephants. Like elephants, sirenians are enormous animals.
There are five species of Sirenia, but scientists theorize that there were many more in the past. Early forms of manatees are thought to have originated near the Amazon basin in South America. Some remained there to become the Amazonian manatee, while others migrated up through the Caribbean, giving rise to the Antillean and Florida manatees. Another group managed to swim or where carried on currents across the Atlantic and became the West African manatee.
Dugongs thought to have evolved along with mantees once ranged from Europe to Africa, and along the East and West coasts of the Americas. At the present time, they are only found in the Eastern Hemisphere in the Indian and Pacific Oceans. Steller's Sea Cow, another species of Sirenian became extinct by fisherman within 25 to 30 years of its discovery in the 1700's.
Physical Characteristics
An adult manatee has a rounded body, usually light to dark gray or black, that tapers to a horizontally flattened, rounded tail, which provides propulsion and also serves as a rudder. Manatee's range in length from 8 to 14 ft. long, depending on the species and can weigh 440 to 1300lbs. Although males can grow larger than the females. The small head includes a straight snout and a cleft upper lip with bristly hairs. Whiskers can be found on the surface of the lips, each attached seperatly to nerve endings and its own...
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