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.
即使是在最有利的環(huán)境中,死去的生物中也只有一小部分能在開始腐爛前,或更可能在被食腐動物吃掉之前,被這樣保存下來。