Birds are good pets, they can wake you up by singing in the morning.
鸟是很好的宠物,它们早上的歌声可以将你从梦中唤醒。
But even in the most favourable circumstances only a small fraction of the creatures that die are preserved in this way before decay sets in or, even more likely, before scavengers eat them.
即使是在最有利的环境中,死去的生物中也只有一小部分能在开始腐烂前,或更可能在被食腐动物吃掉之前,被这样保存下来。