Pygmy hippopotamus the pygmy hippopotamus, are considered dwarf hippopotamuses, rather than pygmies. They are likely descended from a full-sized species of European hippopotamus, and reached their small size through the evolutionary process of insular dwarfism which is common on islands; the ancestors of pygmy hippopotami were also small and thus there was never a dwarfing process. There were also several species of pygmy hippo on the island of Madagascar (see Malagasy hippopotamus). Pygmy hippos share the same general form as a hippopotamus. They have a graviportal skeleton, with four stubby legs and four toes on each foot, supporting a portly frame. The
Atlantic pygmy octopus drill a hole in the prey's shell, and proceeds to secrete poisonous saliva out of its beak to paralyze its victim. While the Atlantic pygmy octopus feeds primarily on small crustaceans, only a few species have been recorded as prey of this species in the wild. In laboratory conditions, this diet is expanded considerably. Atlantic pygmy octopus The Atlantic pygmy octopus ("Octopus joubini"), also known as the small-egg Caribbean pygmy octopus, is a small octopus species in the order Octopoda. Fully grown, this cephalopod reaches a mantle length of with arms up to long. They are known for being intelligent