Did you know that the American Molossus Dog is the largest dog in the world? You're about to find out! In this video, we're taking a look at the American Molossus Dog, one of the largest dogs on the ...

Critter spotters are feline good about this one. Biologists were flabbergasted when an elusive animal thought to be extinct was spotted in Thailand — a staggering 30 years after it was last spotted, ...

PORTLAND, Maine — One of the world's rarest whale species is having more babies this year than in some recent seasons, but experts say many more young are needed to help stave off the possibility of ...

Once in a while, an animal shows up where it’s least expected, including places from where it was thought to have gone extinct. These rare sightings bring hope — but also fresh concerns. These are ...