In common with other birds, penguins have feathers, lay eggs, and are warm-blooded. Through evolutionary processes, penguins’ wings gradually adapted to become flippers, which they use for swimming. The feathers of a penguin are relatively short and stiff in comparison to those of other birds and they overlap closely to form a thick, smooth layer which traps air beneath it and so provides insulation from the cold.

与其他鸟类相同的是，企鹅也有羽毛，也下蛋，也是温血动物。在生物进化的过程中，企鹅的翅膀逐渐退化为鳍状肢，主要用于游泳。与其他鸟类的羽毛相比，企鹅的羽毛相对较短，质地坚硬，而且这些羽毛相互交叠，形成了一层又厚又滑的保护层，隔绝了羽毛下方的空气，从而起到了防寒的作用。

Other flightless birds include the Australian emu, the cassowary of New Guinea, and the ostrich. Unlike the penguin, they’re all more visibly ‘feathery’ as well as being land-based, so we’re probably more likely not to question the fact that they’re birds.

其它不会飞的鸟类包括澳大利亚的鸸鹋、新几内亚的食火鸡和鸵鸟。与企鹅不同的是，这些鸟类羽毛都是很明显的，而且都生活在陆地上，因此我们不大会质疑它们是鸟类的事实。

澳大利亚鸸鹋

新几内亚食火鸡

非洲鸵鸟

Definition of Penguin

企鹅的定义

From www.collinsdictionary.com：A penguin is a type of large black and white sea bird found mainly in the Antarctic. Penguins cannot fly but use their short wings for swimming.

柯林斯在线词典：企鹅是一种体型较大的黑白相间的海鸟，主要生活在南极圈。企鹅不会飞，但是会使用其短鳍游泳。

So, a penguin IS a bird!

所以说，企鹅是鸟类。

如果觉得好，欢迎继续关注 廖怀宝的原创微信订阅号“ 新概念英语的教与学”！

需要入群，可直接扫码（下图）申请：返回搜狐，查看更多