African pygmy hedgehogs kept as pets require exercise wheels to meet their nightly locomotion needs, but wheel design and size significantly affect injury rates and whether exercise satisfies their behavioral drive.
Hedgehog wheel exercise is not optional enrichment — it is a behavioral necessity for captive African pygmy hedgehogs whose locomotion drive is as strong in captivity as in the wild. A hedgehog without an appropriate wheel is in a state of chronic locomotion frustration. The specifics of wheel design — solid surface, adequate diameter, appropriate material — determine whether the wheel provides welfare benefit or causes injury. Getting wheel design right is fundamental to responsible hedgehog keeping.