A 300-million-year-old fish fossil unearthed from a coal field in England has preserved something paleontologists almost ...

Over 300 million years ago, a minnow-sized fish died and fell to the bottom of a prehistoric swamp near the village of Trawden, Lancashire, in northwest England. The remains of this tiny fish—known as ...

Scientists have discovered the strongest evidence yet that healthy vertebrates can have brain microbiomes. Samuel Velasco / Quanta Magazine The original version of this story appeared in Quanta ...

Some fish have bacteria on the brain. Wild and lab-grown members of the salmon family including European rainbow trout, Chinook salmon and Gila trout harbor active microbial communities inside their ...