Since most langurs are tree dwellers, these often scamper high on the desert cliffs or perch on nearby rooftops.
因为绝大部分的长尾叶猴是栖在树上的，他们往往是疾走出没在沙漠悬崖上或者是栖息在附近的屋顶上。
An arched fossilized foot bone found in Ethiopia shows that human ancestors walked upright 3.2 million years ago and were no longer tree dwellers, said a study Thursday in the journal Science.
周四出版的科学杂志上的一个研究声称：从一段在埃塞俄比亚发现的足弓部化石骨骼上研究显示，人类祖先在320万年以前已不再生活在树上而是开始在地上直立行走。
These species also differ morphologically: grass dwellers are slender with long tails, tree-dwellers are stocky with long legs, twig dwellers are slender but stubby-legged.
这些物种在形态上也有所不同：呆在草上的动物体型纤细，尾巴很长；呆在树上的动物体格健壮，腿长；而呆在树枝的动物体型纤细，但腿短。
Yet despite its high cost, creatures ranging from ground dwellers to tree climbers and even flyers do it.
尽管这些花费过多，从地上居的到树上爬的，甚至天上飞的动物们都会去做。
A popular getaway destination for city dwellers, the picturesque area is known for its tree-covered hills, sparkling lakes and swathes of farmland.
作为受欢迎的城市居民短期旅行目的地，这个风景如画的地方因其绿树环绕的山、波光粼粼的湖水、大片的农田而广为人知。
Sadly, these sluggish tree-dwellers are also increasingly threatened in their native forests of Central and South America.
可悲的是，在中南美洲的原始森林中，这种行动迟缓的树上居民也面临着日益增长的威胁。
These photogenic tree-dwellers have the appearance of a bear and the agility of a monkey, but they actually belong to the raccoon family.
这些上镜头的树居民外观像一只熊和敏捷灵活的猴子，但是它们实际上属于浣熊家庭。
These photogenic tree-dwellers have the appearance of a bear and the agility of a monkey, but they actually belong to the raccoon family.
这些上镜头的树居民外观像一只熊和敏捷灵活的猴子，但是它们实际上属于浣熊家庭。
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