Рейтинг@Mail.ru
Rambler's Top100




Не нашли нужную работу? Закажи реферат, курсовую, диплом на заказ

реферат на тему: Mammals

скачать реферат

required to save her life.

The difficult surgery was masterfully conducted. Intensive care was required for more than two months. The veterinary staff and a hospital team kept the cat alive through repeated tube-feeding and frequent hands-on care, despite the cat's aggressive distrust of such treatment. Following many weeks of this regimen, the cat responded and made sufficient recovery to allow her return to the leopard exhibit.

A primary hurdle had been cleared -- the female had survived the injury. Next to be resolved were her adjustments to life on three legs and finding a method which would allow her reintroduction to the Chinese male.

First, the mammal staff placed the cat in a program designed to help her grow accustomed to life with three legs. After several months of satisfactory progress, the staff decided to place her with the male, who had been kept in a separate but adjoining room. The animals were allowed to make contact as they chose. To the relief of all, the reintroduction was successful. The cats proved to be compatible, and, shortly after reintroduction, breeding took place.

On the morning of April 25, 1984, final proof of the success of a long and difficult management program arrived-- a litter of two cubs. One cub did not survive, but the other was taken to the Children's Zoo to be raised by the nursery staff.

UNIQUE FELINE

The clouded Leopard has intrigued its public, been sought after for its fur, and mystified those who would try to categorize it. During the early morning hours of April 25, 1984, a discovery was made which was the culmination of a saga, which held elements of zoo diplomacy and goodwill, tragedy and suspense, cooperation and success. The discovery climaxed a chain of events surrounding this paradoxical cat.

This cat has behavioral and physical traits typical of the small cats, genus Felis, and the big cats, genus Panther. A paradox to taxonomists and zoologists, it has been assigned to its own genus, Necrfelis, and is considered a bridge between the two larger genera. A relationship to the extinct saber toothed cat has even been suggested, based on the physical characteristic of having, in proportion to body size, the longest canines of all living felines. Its canine structure is also similar to that of the saber-toothed cat.

The clouded leopard has a body size ranging from 24 to 42 inches (616-1,066 mm) Its tail adds another 21 to 36 inches (550-912 mm) of length. This leopard's weight falls between 35 and 50 pounds (16-23 kg). Its fur is grayish brown to tawny yellow and has dark markings in a variety of shapes, which seem to form cloudlike patterns.

The clouded leopard was once believed to be exclusively arboreal and nocturnal. Recent observations in captivity and in the wild indicate, however, that it may be considerably more terrestrial and diurnal than previously thought. It is believed to prey upon birds, young buffalo, cattle, deer, goats, monkeys, pigs, and porcupines. The species is difficult to manage in captivity because of a tendency to be highly aggressive toward other species and humans. The exceptionally long canine teeth can easily inflict mortal injury. True to its paradoxical reputation, however, some cats may become extremely affectionate toward humans, even permitting and seeking physical contact.

NORTH CHINESE LEOPARD

This leopard is so rare that humans
Не нашли нужную работу? Закажи реферат, курсовую, диплом на заказ




almost never see it in the wild. It roams the forests and mountain meadows of northern China and Korea.

It makes its home in a great tangle of fallen trees and shrubs. When it kills smaller animals it devours them right away. But when it comes to larger prey, like deer and wild goats, the leopard drags the animal home to save for several meals.

Don't be scared. The teeth of this snarling leopard won't hurt you.

On the contrary. It's the snow leopard that should be afraid. Its relatives in the wild are in constant danger from poachers who want to shoot them for their pelts and teeth.

Even though shooting leopards is illegal, it's considered "good business." That's because some people still wear leopard fur coats, and others believe that leopard teeth earrings and necklaces have special powers.

SNOW LEOPARD: COLD WEATHER CAT

The shy, nocturnal and virtually unknown Snow Leopard is classified with the big cats, but shares some small cat characteristics, for example it doesn't roar and it feeds in a crouched position.

The Snow leopard has to contend with extremes of climate and its coat varies from fine in summer to thick in winter. The surfaces of its paws are covered by a cushion of hair, which increases the surface area, thus distributing the animal's with more evenly over soft snow and protecting its soles from the cold.

Snow leopards are solitary except during the breeding season, (January to May), when male and female hunt together, or when a female has young. One to four young are born in spring or early summer in a well-concealed den lined with the mother's fur. Initially, the spots are completely black. The young open their eyes at 7-9 days, are quite active by two months, and remain with their mother through their first winter

Snow leopards are extremely rare in many parts of their range due to the demand for their skins by the fur trade. Although in many countries it is now illegal to use these furs, the trade continues and the species remains under threat.

SNOW LEOPARD

They live in the snow-covered mountain peaks of Central Asia. How high do these Asian Mountains rise? They reach 20,000 feet in altitude.

The snow leopard's long, thick fur keeps it warm even in the frosty air, and its creamy white and gray color camouflages it in the snow. Because humans are fond of turning its beautiful coat into coats for themselves, the species is on the brink of extinction.

HYENS SPOTTED HYENA

This hyena is also known as the "laughing" hyena. Sometimes a hyena lets out a cry that resembles a wild human cackle.

Did you know that a hyena can gorge up to 33 pounds of meat extremely fast? It needs to eat fast because as many as 50 other hungry hyenas may be next to it, noisily feeding on the same piece of meat. Scientists have seen 38 hyenas devour a zebra in 15 minutes, leaving only a few scraps behind.

The hyena is famous for eating animal parts that other meat-eaters won't touch. You might even see it stamping and biting on an ostrich egg, trying to eat it. After devouring everything in sight, the hyena spits out the horns, hooves, and bone pieces, ligaments and hair. If there are leftovers, it buries the meat in a muddy pool. The hyena's good memory leads it back to the hidden food when it's hungry again.

The spotted hyena hunts at night. Hyenas were once thought

скачать реферат
1 2 3 4 5 6 ...    последняя

Не нашли нужную работу? Закажи реферат, курсовую, диплом на заказ

Внимание! Студенческий отдых и мегатусовка после сессии!


Обратная связь.

IsraLux отзывы Израиль отзывы