- turtleAny land, aquatic, or semi-aquatic reptile of the order Testudines, characterised by a protective shell enclosing its body. See also tortoise.
- turtle doveAny of several (species of) birds, called by this traditional name, mainly in the genus Streptopelia, of the family Columbidae (doves and pigeons, which also included the extinct passenger pigeon, dodo, and solitaire).