10 Amazing Things You Didn't Know About Animals

Photo Credit: Michel Meynsbrughen / Stock.xchng

Crocodiles Swallow Stones for Swimming

The stomach of a crocodile is a rocky place to be, for more than one reason. To begin with, a croc’s digestive system encounters everything from turtles, fish and birds to giraffes, buffaloes, lions and even (when defending territory) other crocodiles. In addition to that bellyful-o’-ecosystem, rocks show up too. The reptiles swallow large stones that stay permanently in their bellies. It’s been suggested these are used for ballast in diving

See the complete list at Live Science.

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