Sex is determined by incubation temperature, not genetics
Leopard geckos exhibit Temperature-dependent Sex Determination. Eggs at 79–81°F produce predominantly females. Eggs at 88–90°F produce predominantly males. The 82–85°F range produces a mixed clutch with a female bias. There are no sex chromosomes — genetics play no role.
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Most active at dawn and dusk when temperatures in their native Pakistan and Afghanistan are ideal.
A widespread misconception is that the tail acts like a camel's hump storing water.
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.