Whatever the type of mouth, human or fish, happy Valentine’s week to everyone. And now you know a bit more about those silly fishy lips we all make.

Fish feed in different parts of the water column, and their bodies and diets are adapted to their feeding strategies. Their ...

As the fish open its mouth, you can see a pair of muscles in the mouth that may signal to the other fish its ability to bite hard. Photograph by Watcharapong Hongjamrassilp. ANIMALS; ...

Unlike all other fish, whose jaw joint sits behind their mouth, the hingemouth’s jaw joint is at the front of its head. The lower jaw is flipped backwards, pointing towards the throat.

According to Guinness World Records, Sloane’s viperfish is the fish with the biggest teeth relative to its head size, making up just over half of its head length.In fact, its fang-like, not-so ...

The pink four inch fish’s distinctive eyespot, or ocellus – which serves to confuse predators – is dark black with a “pale whitish-rose ring” around it, researchers sa… ...