企鹅英语简易读物精选白长角羚的英文

企鹅英语简易读物精选白长角羚的英文
企鹅英语简易读物精选白长角羚的英文

企鹅英语简易读物精选白长角羚的英文
The chiru is endemic to the Tibetan Plateau.It weighs 26 - 40 kg (57 - 88 lb) and favors alpine steppe or similar semiarid habitats.The chiru prefers flat to rolling terrain,although it readily ascends high rounded hills and penetrates mountains and crosses passes by following valleys.It can be found at elevations from 3250 - 5500 m (10,660 - 18,000 ft).Movement patterns of the chiru are complex,with females following different patterns from males.Females can migrate up to 300 km (190 mi) between winter mating grounds and summer calving grounds.Chiru herds also vary widely in size and composition.Although herds of 15,000 are no longer seen,as they were a century ago,herds of 1000 or more can still be observed.
The chiru is found primarily on the alpine steppe of northwest Tibet in China.There are a number of both migratory as well as resident populations.The only chirus found outside China are in the Ladakh area of India and comprise only about 200 animals.From Ladakh,the chiru's distribution extends 1600 km (990 mi) eastward across Tibet and southern Xinjiang to Qinghai.The range of the chiru from west to east appears to be much as it was a century ago.However,the range has contracted in central Tibet and eastern Qinghai.
Poaching is the most serious threat to the chiru.It is being slaughtered illegally by the thousands for its wool,which is known in the international market as "shahtoosh" or "king of wool."
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Penguins are a group of aquatic,flightless birds living almost exclusively in the Southern Hemisphere.Highly adapted for life in the water,penguins have countershaded dark and white plumage,and their wings have become flippers.Most penguins feed on krill,fish,squid,and other forms of sealife caught while swimming underwater.They spend about half of their life on land and half in the oceans.
Although all penguin species are native to the southern hemisphere,they are not found only in cold climates,such as Antarctica.In fact,only a few species of penguin live so far south.Several species are found in the temperate zone,and one species,the Galápagos Penguin,lives near the equator.