The fish that limbed vertebrates evolved from don't have obvious digit equivalents, and the most common types of fish just ...

Documenting fish noises isn’t exactly easy. The underwater creatures aren’t as loud as birds or whales; they also make noises ...

The sea lamprey looks like it’s from another planet, but this ancient creature has a surprising amount in common with humans ...

A new discovery by our team, published in the Swiss Journal of Palaeontology, shows the start of this process dates back more than 380 million years. The first evidence of teeth in any vertebrate ...

Losing your baby teeth is a strange experience. The teeth gradually loosen until they're replaced by thicker, more durable ...

The composition of fish populations in streams and rivers across the U.S. have been severely altered as a result of changing ...

How did digits evolve? While it is clear that they derive from genetic programs already present in fish, their precise origin ...

Cold-water streams have experienced disproportionate impacts, experiencing more than a 50% decrease in fish abundance over ...

Researchers have finally traced the origin of the spotted ratfish’s bizarre forehead teeth, which are used for mating ...

The evolutionary blueprint for hands was borrowed in part from a much older genetic plan for our nether regions, a new study ...

The same regulatory landscape which influences the development of fingers is present in fish, despite their distinct lack of ...

Pterosaurs and Archaeopteryx took to the skies, but there was trouble in this Jurassic paradise: Tropical storms would turn ...