Some species, like the spadefoot toad, cannibalize in response to environmental pressures.

有些动物，比如足蟾，是因为环境压力而吞食自己的同类。

Where spadefoot toads burrow into the desert soil and go dormant before waking up to an alarm clock of raindrops.

蟾蜍钻进沙漠的土壤，进入休眠状态，然后被雨滴的闹钟唤醒。

The spadefoot toad is far from the only animal to eat members of its own species as a normal part of its life cycle.

足蟾远不是唯一把吞食自己同类以生存作为正常生命周期一部分的动物。