Sea-Monkeys

Sea-Monkeys is a brand name for brine shrimp—a group of crustaceans that undergo cryptobiosis—sold in hatching kits as novelty aquarium pets. Developed in 1957 by Harold von Braunhut, the product was heavily marketed, especially in comic books, and remains a presence in popular culture. May 16 is National Sea-Monkey Day in the United States.