Why are there so many species of coral reef fish? According to a new study, it's because about 50 million years ago, some fish figured out how to bite food from hard surfaces.

A trade-off between tooth size and jaw mobility has restricted fish evolution, Nick Peoples at the University of California Davis, US, and colleagues report June 24 th in the open-access journal PLOS ...

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The efficient architecture of our joints, which allows our skeletons to be flexible and sturdy, originated among our most ancient jawed fish ancestors, according to a new study. The efficient ...

Add Yahoo as a preferred source to see more of our stories on Google. A close-up view of a fish with a muscular, hand-like fin resting on a coral reef in clear, sunlit water.© A-Z Animals The post The ...

The evolutionary history of freshwater fishes is a rich tapestry woven from both molecular and palaeontological threads. Over millions of years, diverse lineages have adapted to continental waters, ...

When we think of the fish that inhabit the deep blue sea today, it’s easy to forget that they haven’t always been there. The ocean was once a much quieter place, populated mainly by smaller creatures, ...