- penguin - short-legged flightless birds of cold southern especially Antarctic regions having webbed feet and wings modified as flippers
--1 is a kind of sphenisciform seabird
--1 is a member of Spheniscidae, family Spheniscidae
--1 has particulars:Adelie, Adelie penguin, Pygoscelis adeliae; king penguin, Aptenodytes patagonica; emperor penguin, Aptenodytes forsteri; jackass penguin, Spheniscus demersus; rock hopper, crested penguin