The box turtle (Terrapene), is a genus of turtle native to North America largely characterized by having a domed shell, which is hinged at the bottom, allowing the animal to close its shell tightly to escape predators. Box turtles have become popular pets, although their needs in captivity are complex. Easily stressed by overhandling and requiring more care than is generally thought, box turtles require an outdoor enclosure, consistent exposure to the sun and a varied diet.
The Asian box turtle (Cuora), is a turtle of the genus of the family Geoemydidae comprising some 10-11 species with about the same number of subspecies. The keeled box turtle (Pyxidea mouhotii/Cuora mouhotii) is often included in this genus but is also often placed in its own genus (Pyxidea). The genus occurs from Assam throughout Southeast Asia and central to southern China northeastwards to Japan, and southeastwards to the borders of the Wallacea and onto Indonesia and the Philippines. Most Asian box turtle species need for a semi-aquatic environment make them a challenge to house properly. Some species rapidly become hefty animals, no less than a Herman's Tortoise in size.