Ray-finned fish species make up around half of all vertebrate species on Earth, so understanding their evolutionary history will go a long way toward helping us understand the evolution of ...

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 .

Fish with oldest known ‘face’ may reshuffle evolutionary family tree. By Amina Khan . Sept. 25, ... Here’s a brief history of the early fish family tree and its human connection: ...

But the new CT study repositions polypterids on the fish evolutionary tree so they are "nestled neatly back more closely with other living ray-finned fishes, kicking a range of fossil ray-fins to ...

We share a common ancestor with all life on Earth, but we share common ancestors with some lineages of the Tree of Life much more recently than the 400-million-year-old fish that first came onto land.

The researchers looked at 10 genes in more than 500 fish species representing most of the families of spiny-rayed fish. They used the genetic data to construct a tree, grouping related families ...

That is one of the surprises from the first comprehensive family tree, or phylogeny, of the "spiny-rayed fish," a group that includes about a third of all living vertebrate species.

Near and co-author Christine E. Thacker, curator emerita of ichthyology at the Natural History Museum of Los Angeles County, drew many surprising connections while completely revising the Tree of Life ...

In her novel “Why Fish Don’t Exist,” Lulu Miller points out that a true “fish” clade containing an ancestor and all its descendants is an unrealizable dream, awkwardly grouping organisms with ...

Around 375 million years ago, a giant fish evolved limbs for walking. But some of its descendants reversed course on the evolutionary road, becoming swimmers again.