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 in the open-access journal PLOS Biology.

Why are there so many of 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. Evolution doesn’t ...

If you're reading this sentence, you might have a fish to thank. Fish were the first animals to evolve jaws. They use their jaws primarily to eat, but also for defense, as tools—such as to burrow or ...

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 ...

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, ...

The efficient architecture of our joints, which allows our skeletons to be flexible and sturdy, originated among our most ...

Modern walking fish share the same simple gait, offering new clues about how ancient vertebrates first moved from water onto ...

Freshwater fishes represent one of the most species-rich assemblages of vertebrates, with lineages distributed across rivers, lakes and wetlands on every continent except Antarctica. Molecular ...