The animals can fine-tune the scope of their echolocation calls to broaden or narrow their search for prey.
There are some surprising entries on a new list of intelligent animals, including a small lizard and a furry animal that might be in your home now.
Two other tourists were injured when a surfacing whale hit a tour boat.
Some females (including women) often live beyond their child-rearing years because their wisdom improves the survival of others.
An ancient relative of the hippopotamus likely swam from Asia to Africa some 35 million years ago.
An ancestral study of the hippo reveals that a wide variety of animals share distant relations with the mammal.
Not all stars walk on two legs -- or even have legs. This Oscar season, we take a look at some famous animals that made their mark in film and television.
Mass beachings of whales look like a collective suicide pact come to fruition among the giant creatures of the sea. But science has a few more realistic, less self-destructive ideas about why they may head for shore.
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