The adaptive significance of the flexible shell of the tortoise Malacochersus tornieri.
D000220:Adaptation, Biological; D000818:Animals; D005075:Biological Evolution; D005552:Forelimb / Q000502:physiology; D006339:Heart Rate; D006614:Hindlimb / Q000502:physiology; D006799:Housing, Animal; D008124:Locomotion; D008168:Lung / Q000502:physiology; D009040:Motion Pictures; D009043:Motor Activity; D010812:Physical Stimulation; D011312:Pressure; D013637:Tape Recording; D013690:Television; D014426:Turtles / Q000502:physiology*