Now, a new fossilized fish skeleton found in China is older than the next-oldest specimen by a whopping 15 million years and is the, “oldest undisputed jawed fish.” ...

Thanks to carbon dioxide emissions, Earth’s seas are getting both warmer and more acidic. Until now, the consequences of ocean acidification were thought ...

Theory had it that some continued to do without them, becoming sharks, while others re-evolved the modern-style skeleton of many fish, reptiles and mammals.

Professor Adam Summers is a "fish guy." He uses fish to get engineering ideas. His latest project is to CT scan every type of fish — all 33,000 of them.

The discovery of the 410-million-year-old fish fossil suggests the lighter skeletons of sharks may have evolved from bony ancestors, rather than the other way around.