Biology Term Paper - Tigers
The tiger is part of the kingdom Animalia, phylum Chordata, class Carnivora, family Felidae, subfamily Panthernae, genus/species Panthera tigris. Tigers have round pupils and yellow irises (except for the blue eyes of white tigers). Due to a retinal adaptation that reflects light back to the retina, the night vision of tigers is six times better than that of humans. Like domestic cats, tiger claws are retractable. Tiger scratches on trees serve as territorial markers. No one knows exactly why tigers are striped, but scientists think that the stripes act as camouflage (See diagram A), and help tigers hide from their prey. The Sumatran tiger has the most stripes of all the tiger subspecies, and the Siberian tiger has the fewest stripes. Tiger stripes are like human fingerprints; no two tigers have the same pattern of stripes. The tiger's head often carries the Chinese mark of wang or king on the forehead. Most tigers have an orange coat with dark brown or black stripes accented with white. Tigers that live in cold climates (Siberian tigers) have thicker fur than tigers that live in warm climates. A tiger's tail is 3 to 4 feet long, about half as long as its body. Tigers use their tails for ba
Siberian tigers are the heaviest subspecies at 225 or more kg with males heavier than females. The lightest subspecies is the Sumatran; males weigh about 110 kg and females around 90 kg. Depending on the subspecies, the head-body length of a tiger is about 1.4-2.8m. The length of the tail is 90-120 cm. The foot pads vary in size with age, resulting in inaccurate estimates when used in censusing wild populations. The heaviest tiger recorded in the Guinness Book of World Records is a 1,025-pound male Siberian tiger. Russia, and a few are found in northeastern China of Bengal tigers and are rarely found in the wild. the Indonesian island of Java and was last seen in 1972. The Bali tiger, Panthera tigris balica, once lived on Bali, where the last tiger was believed to have been killed in 1937.
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Approximate Word count = 2016
Approximate Pages = 8 (250 words per page double spaced)
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