Monteira filmed herself playing with the fish's mouth and lifting its upper lip to show off the uncanny gnashers. 'No, but teeth like that? Like dentures? Look here!' she quipped. Monteira then ...

Baleen whales filter feed on tiny plankton, while toothed whales gulp down fish without chewing. Use their long tongues to ...

Fish can change their teeth quickly, which speeds up their evolution. Cichlids in African lakes show the fastest ...

All kinds of animals are present on this Earth. Most animals have ravenous teeth that are used to hunt other animals. Here ...

A new study shows that the ease with which these fish can develop a biological innovation (complex teeth), not just the innovation itself, enables this rapid evolution. (Photo of Nimbochromis ...

A new study shows that the ease with which these fish can develop a biological innovation (complex teeth), not just the innovation itself, enables this rapid evolution. It’s not what you do ...