The extinct animal's face structure could help explain how vertebrates, including ourselves, evolved our distinctive look.

Researchers have traced cell origins critical to vertebrate evolution by studying a group of primitive, bloodsucking fish called lampreys. When you purchase through links on our site, we may earn an ...

A living fossil fish just proved we've misunderstood a major chapter in the story of evolution. For decades, the coelacanth — an ancient fish species that first appeared 400 million years ago — was ...

A study published in the Nature journal alters how the evolution of fish has been historically understood. Fossilized fish and other sea creatures have often been pivotal in new scientific discoveries ...

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A team of researchers at the Georgia Institute of Technology have zeroed in on an amphibious fish species to better understand the evolutionary pressures that molded blinking in land-dwelling ...

To approach a question 400 million years in the making, researchers turned to mudskippers, blinking fish that live partially out of water. A magnified view of the human eye shows the pupil, the ...

Yara Haridy, an evolutionary biologist at the University of Chicago, likes to stun people by telling them that our skeletons evolved from a jawless fish. "Much of what we have today has been around ...

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.

The cichlid fish of Africa's Great Lakes have formed new species more rapidly than any other group of vertebrates. A new study shows that the ease with which these fish can develop a biological ...