According to one app for nature observers, it's the most commonly seen creature in California: the western fence lizard. Why?

Discovered in Barbados in 2006, this worm-sized snake went misidentified for a century — and now, it may disappear before ...

The Missouri Department of Conservation (MDC) has issued a stern warning about the northern snakehead fish. This predatory ...

Scientists recently split the king cobra into four separate species — as if one wasn’t terrifying enough. Here’s what these ...