Red wolves, which can grow to be about 80 pounds, have been called the most endangered wolf species on Earth. They once lived across parts of the southern and eastern United States but nearly ...

A trio of rare marine species was recently spotted off the coast of Thailand, photos show. The elusive sea creatures — two types of dolphin and one sea turtle — were observed during an April survey in ...

From the brightly colored golden poison dart frog that secretes a lethal neurotoxin to the Cookie Monster-lookalike fish that ...

These are the prettiest freshwater fish, from vibrant brook trout and pumpkinseed sunfish to majestic lake sturgeon. Check out how these species made our list!

Though ‘cuttlefish’ sounds like a cute little fish that you’d want to snuggle, that isn’t the case. The cuttlefish is more like an octopus than a fish. It is a cephalopod with eight arms and two long ...

In the right light, the fish seemed to have a gold gleam. "They're named galaxias because it reminded the person who named them of stars. I think they're pretty cute." On a more serious note, they ...