Kangaroos have large,powerful hind legs,large feet adapted for leaping,a long muscular tail for balance,and a small head.Like most marsupials,female kangaroos have a pouch called a marsupium in which joeys complete postnatal development.
Larger kangaroos have adapted much better than smaller macropods to land clearing for pastoral agriculture and habitat changes brought to the Australian landscape by humans.Many of the smaller species are rare and endangered；
whilst the larger kangaroos are relatively plentiful.The kangaroo is an unofficial symbol of Australia and appears as an emblem on the Australian coat of arms and on some of its currency and is used by some of Australia's well known organisations；
including Qantas and the Royal Australian Air Force.The kangaroo is important to both Australian culture and the national image,and consequently there are numerous popular culture references.
扩展资料：
生活习性：
袋鼠是食草动物，吃多种植物，有的还吃真菌类。它们大多在夜间活动，但也有些在清晨或傍晚活动。袋鼠以矮小润绿离地面近的小草为生,将长草与干草留给其它动物。个别种类的袋鼠也吃树叶或小树牙。
袋鼠家族中“种族歧视”十分严重；它们对外族成员进入家族不能容忍，甚至本家族成员在长期外出后再回来也是不受欢迎的。家族即使接受新成员，也要教训一番，直到新成员学会许多“规矩”后，才能和家族融为一体。