This Indo-Pacific stunner dons a kaleidoscope shell of greens, blues, reds, and oranges, with purple eyes that swivel independently. At 3-18 cm long, it packs a punch like a .22 bullet using club-like ...

Discovered by accident, Movile Cave is one of the most hostile environments on Earth—and one of the richest in unique lifeforms. Sealed off from the atmosphere, it evolved in isolation, giving rise to ...