Crotalus

例句：

1. 1. Crotalus adamanteus is a species of snake found in Africa.
   响尾蛇是一种在非洲发现的蛇类。
2. 2. The crocodile's venom can be fatal to humans.
   鳄鱼的毒液对人类可能是致命的。
3. 3. When the sun sets, the crocodile emerges from its lair to hunt for food.
   当太阳落山时，鳄鱼会从它的巢穴中出来捕食。