My, what small teeth they had. A newfound treasure trove of ancient fish fossils unearthed in southern China is opening a window into the earliest history of jawed vertebrates — a group that ...

These spines set it apart from current jawed fish as well as cartilage containing sharks and rays and bony ray- and lobe-finned fish.

Demonstrating that cartilaginous jawed fish also have synovial joints opens up the questions of whether their–and our–common ancestor also had them.

Researchers in China have discovered fossilized fragments of an ancient shark-like fish — the oldest jawed vertebrate ever discovered.

The efficient architecture of our joints, which allows our skeletons to be flexible and sturdy, originated among our most ancient jawed fish ancestors, according to a new study.

Millions of years ago, these jawed fish crawled out of the seas and paved the way for the vertebrates we see on land today. See what these ancient creatures looked like, according to scientists.

Scientists have discovered the world’s oldest heart in a 380 million-year-old fossil of a jawed fish. Researchers from Curtin University in Australia found the “beautifully preserved” heart ...

Researchers have discovered a 380 million-year-old heart—the oldest ever found—alongside a separate fossilized stomach, intestine, and liver in an ancient jawed fish, shedding new light on the ...

380m-year-old ‘beautifully preserved’ fish heart is oldest ever found The discovery could shed light on how creatures, including humans, evolved, researchers say.

The efficient architecture of our joints, which allows our skeletons to be flexible and sturdy, originated among our most ancient jawed fish ancestors, according to a study published in the open ...