Characidium dumonti lives among the rocks and pebbles at the bottom of the fast-flowing streams in the national park, ...

With over 100 varieties of snakes found in Texas, there's one, in particular, you should definitely stay away from.

Arizona has a few lakes that are worth a visit, but you might reconsider your next swim once you learn about the species that ...

On a small island of Papua New Guinea, a 4-foot-long creature moved through the overgrown rainforest covering the site of an ...

The invasive northern snakehead, which has recently been appearing in Missouri and other states, must be eradicated, officials say.