濒危动物英文ppt课件.ppt

1、The status of endangered animals,1,According to the survey, there are 75 species die out everyday in the world. That is to say, at the average of 3 species vanish an hour. In china, the population of endangered animals is very rarely, and the number of endangered animals is decreasing right now. Due

2、 to human expansion, many animals havent home to live in.,2,The status of 12 endangered animals in the world,3,only produced in the middle and lower Yangtze River Chinese, The baiji is a warm blooded animal, known as the water of the giant panda. To twentieth Century, due to various reasons, the pop

3、ulation decline, estimated in 2002 has been less than 50 head, it not only were classified as a national protected wild animal, is one of the worlds 12 most endangered animal. In August 8, 2007, the Royal Society journal Biological letter published in the report, formally announced the baiji functio

4、nal extinction.,白鳍豚（LipotesvexilliferMiller）,4,Sumatran tiger is the smallest subspecies in all tiger species. Only distributed in Indonesias Sumatra island (印度尼西亚苏门答腊岛). The habitat of the forest from the plains to the mountains. The only remaining wild Sumatran tigers are about 400-500, mostly fiv

5、e national parks in Indonesia island.,苏门答腊虎The Sumatran tiger,5,White Rhinoceros，Members of the species once inhabited rainforests, swamps, and cloud forests in India, Bhutan（不丹）, Bangladesh（孟加拉共和国）, Myanmar（缅甸）, Laos, Thailand, Malaysia（马来西亚）, Indonesia, and China。Their numbers are difficult to det

6、ermine because they are solitary（独立的）animals that are widely scattered across their range, but they are estimated to number fewer than 275. Survival of the Peninsular Malaysia （马来半岛）population is in doubt. Total numbers today may be as low as 200.,北部白犀牛(Sumatran rhinoceros),6,TheOrinoco crocodileis

7、acritically endangeredcrocodile. Its population is very small and it can only be found in freshwater environments inColombia(哥伦比亚)andVenezuela（委内瑞拉）, in particular theOrinocoRiver and its tributaries. Extensively hunted for their skins in the 19th and 20th centuries, this species is one of the most

8、critically endangered species of crocodiles. Males have been reported up to 6.6m in the past, but such sizes do not exist today.,奥里诺科鳄鱼The Orinoco crocodile,7,Themouse lemursarenocturnal（夜间活动的）lemursof the genusMicrocebus（倭狐猴属）. Lemurs and Mouse Lemurs were announced by the IUCN（国际自然和自然资源保护联合会） as t

9、he most endangered of all vertebrates. There are about 24 mouse lemur species identified by 2016. There were only 2 known mouse lemur species by 1992. It was estimated that the 24 mouse lemur species evolved from a common ancestor 10 million years ago. Evolution of mouse lemurs is an example for ada

10、ptive radiation.,小嘴狐猴(Mouse lemur),8,Kemps ridley sea turtleis the rarest species ofsea turtleand iscritically endangered. It is one of two living species in thegenusLepidochely. it also is the whole world 12 most endangered animal only number into the growth trend of animal.,兰.坎皮海龟(L. Kemps ridley

11、sea turtle),9,Monk sealsareearless sealsof thetribeMonachini. They are the only earless seals found in tropical climates. There are twogeneraof monk seals,Monachus andNeomonachus, comprising three species: theMediterranean(地中海) monk seal, Monachus monachus ; theHawaiian（夏威夷的）monk seal, Neomonachus t

12、ropicalis ; and theCaribbean（加勒比海) monk seal,Neomonachus tropicalis, which became extinct in the 20th century. The two surviving species are now extremely rare and in imminent danger of extinction.,僧海豹(monachus-monachus ormonkseal),10,奥瑞纳克鳄鱼(Orinoco Crocodile ）,This kind of life in Venezuelas（委内瑞拉）

13、Orinoco crocodile. It is the largest American crocodile, is a rarity in the animal in Venezuela. Over the years the Venezuelan units concerned to take measures to protect endangered the Orinoco crocodile, and have achieved success. . The remaining wild Orinoco crocodile 250-700 at present.,11,泰国猪鼻蝙蝠

14、(Kittis Hog-nosed Bat),They live in Thailand, living in the teak（柚木） forest and bamboo forest near. Due to the extensive deforestation(砍伐森林), leading to their living environment is destroyed, and now the survival of porcine nasal bat （猪鼻蝙蝠）will not more than 200.,12,夏威夷蜗牛(genus Achatinella),Because

15、of the damage to the environment, cause they gradually lost their original habitat. Besides they are also subject to other imported animal threats, such as mice, carnivorous (肉食性的)snails, Africa large snails. And it brightly colored shell, lead to many collectors like snail shell people at any cost

16、to have it. Now ,they extremely rare and in imminent danger of extinction.,13,斯比克斯鹦鹉Cyanopsitta spixii,By the end of 2000,“ Bix parrot has been extinct in the wild, the possession of only about 60, it is a pity that the 60 most are brothers and sisters, gene library is still needed to expand, or wil

17、l because close relatives problems have caused extinction of lesions（病变）. This birds future remains grim（残忍的）.,14,.微型猪(pigmyhog ),The worlds smallest pig, live mainly in the northeast of India. 60 cm in length, about 25 cm high, adult pigs under 10 kg. Once in the Himalaya（喜马拉雅） Range area exists, now only A-Sun of the India （印度的阿桑地区）region has a few head.,1