When saltwater fish long ago evolved to live in fresh water, many of them also evolved a more sophisticated hearing system, ...

A tiny fossil, Acronichthys maccognoi, rewrites fish evolution in North America and reveals how otophysans conquered freshwater habitats.

Researchers in Alberta uncovered a fossil fish that rewrites the evolutionary history of otophysans, which today dominate freshwater ecosystems. The new species, Acronichthys maccognoi, shows early ...

Prehistoric creature - with ‘snake-like' jaws - found in Scotland as new species Electric ‘knife'-like creature found in river of Colombia. It's a new species Off the coast of India, a trawling net ...

When healthy, anemones look like pink flowers blossoming on rocks and coral, and serve as homes for clownfish, made famous by ...