The tail stores fat reserves, not water
A widespread misconception is that the tail acts like a camel's hump storing water. It stores fat used during food scarcity. A plump, rounded tail indicates good body condition. A severely thinned tail base warrants a vet visit.
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Most active at dawn and dusk when temperatures in their native Pakistan and Afghanistan are ideal.
Autotomy — voluntary tail shedding — is a defence mechanism.
Unlike most gecko species which use van der Waals forces to climb smooth surfaces, leopard geckos have conventional claws.
The moveable eyelid is unusual among geckos.
Hold your gecko up to a light source and look through one ear opening — you can see light through the other side.
Leopard geckos exhibit Temperature-dependent Sex Determination.