考拉属喜夜间活动的、于树上的有袋类哺乳动物。
DNA证据显示，真兽类和有袋类最后的共同祖先生活在1.6亿年前左右。
DNA evidence has suggested the last common ancestor to eutherians and marsupials lived around 160 million years ago.
经理打开字典，查到了熊猫的定义： ：“一种住在树上的有袋类亚洲动物，以分明的黑色和白色皮毛为特征。
Thee manager opens his dictionary and sees the following definition for panda: "A tree-dwelling marsupial of Asian origin, characterised by distinct black and white colouring."
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