(via Deep Look) Known as sand piranhas, Excirolana chiltoni are tiny crustaceans that nibble at your feet – and draw blood – if you hang out on the wet sand at the beach. They live on the Pacific ...

Do you really know who you’re sharing the beach with? Purple sand dollars gobble bits of metal to stay grounded in turbulent waters. Mole crabs move sand like a conveyor belt. Hardworking bees sculpt ...