Baby platypuses have teeth, but soon after leaving the burrow they lose them and rely on their duck-like bills to feed. They use their bills to detect prey and to help them navigate in murky water. The bill is soft, flexible and covered with sensory receptors that can detect electrical and tactile stimule.
Destacado
Egg-laying
Platypus reproduction is nearly unique. It is one of only two mammals (the echidna is the other) that lay eggs.