Some aquarium fish carry price tags that could challenge high-end gadgets, luxury cars, and even some small homes. Yes, you read that right! These tiny beings swimming gracefully in a tank can be ...

Rare fish like the leafy seadragon, coelacanth, axolotl, mandarin dragonet, Asian arowana, zebra pleco, ghost pipefish, ...

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 ...

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 ...