Officials Find One of North America’s Rarest Fish in a River, and It Could Be a Sign of Something Else ...

A rare Ice Age fish is thriving in a Scottish loch where it was reintroduced after becoming extinct across the country, a new survey has found. The Vendace, considered the UK’s rarest native ...

Discover 25 rare species scientists only recently confirmed exist, from deep-sea isopods to new anacondas. Explore Earth's ...

Along Florida’s Atlantic coast, the Indian River Lagoon supports a wide range of marine life, including bottlenose dolphins, ...

A rare new species of fish was recently discovered prowling the bottom of a river in the Amazon rainforest, researchers said. The creature — a yellow-hued, flat-bodied catfish — is distinguished by ...

A tiny desert fish survives in a sun-scorched cavern on the edge of extinction. Here’s how it’s offering scientists a rare glimpse into the extremes life can endure. If you ever needed proof that ...

With under 40 pupfish left in the wild, these are possibly the rarest fish on the planet. The Devils Hole pupfish have existed in isolation for thousands of years in an extreme environment where few ...

Trevor Starks stands in the Neosho River holding a rare mussel. He’s smiling because this find is his first evidence that the mussel, a Neosho mucket, is surviving here eight months after he and other ...

For the first time it also includes plants said Alex Fish, endangered and threatened species coordinator with Maine ...