Humans have hardy prehistoric fish ancestors to thank for paving the way to their eventual evolution, a new study suggests. About 360 million years ago a mass extinction event hit the reset button on ...

Among the lobe-finned fish there was not a big problem with breathing air. They had developed lungs first for use in water. As they may have moved into these stream systems, perhaps lungs became more ...

Fossils of two fish from over 400 million years ago - one a tiny streamlined creature, the other a giant among vertebrates of its time with bizarre teeth - have been discovered in China, filling a ...