The Armored Giant Isopod
This supersized relative of garden pill bugs grows up to 2.5 feet long, with a hard exoskeleton protecting it from the deep’s pressure. Its compound eyes glow faintly in the dark as it scavenges the seafloor for fallen food. These creatures can go years between meals, their metabolisms slowing to near-hibernation until they detect the scent of dead fish or whales sinking from above.