Why it's awesome: The hoatzin is often regarded as one of the world's strangest birds. Hatchlings are born with clawed wings ...

Some animals have mind-blowing powers that sound like pure science fiction—from shrimp with shockwave punches to jellyfish ...

A new study suggests the platypus and echidna — the only egg-laying mammals — had a water-dwelling ancestor. The finding ...

These bizarre animals are a type of sea cucumber and measure around 1.5 to 6 inches (4 to 15 centimeters) long. They get their name from their squishy, bloated bodies and stubby little legs, which ...