From The Egg, Baby Crocodiles Call To Each Other And To Mom

The pre-hatching calls of baby Nile crocodiles actually mean something to their siblings and to their mothers. The calls -- which are perfectly audible to humans and sound like "umph! umph! umph!" -- tell the others in the nest that it's time to hatch, according to research in Current Biology. Those cries also tell the mother crocodile to start digging up the nest.

Read the whole article on Science Daily

More from Science Daily