From venomous spines to spike-covered genitalia, creatures around the world have unique features that set them apart.

Off the coast of Japan, a small, spikey orange fish was caught on the end of a fishing line. The creature was pulled more than 500 feet to the surface and it was identified as a scorpionfish, a kind ...

The creature was pulled more than 500 feet to the surface and it was identified as a scorpionfish, a kind of rock-dwelling fish armed with venom-filled spines. Now, researchers have discovered ...