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Leopard Gecko Sexing
A growing Leopard gecko can only be accurately sexed from six
to eight months of age.
Larger and adult Leopard geckos have a definitive sexual
dimorphism (sexes are visibly distinguishable).
The most accurate way to sex a Leopard gecko is by
looking at the externally visible sex organs which are visible at
the vent area on the underside of the tail base. Just behind
(towards the tip of the tail) of this opening there should be
two visible bulges in males (i.e. the two hemi-penises - which will make two bulges with a “hourglass” indentation
in the middle) and one very slight bulge in females (i.e. one
bulge in the middle of two indentations).
Most Leopard gecko males will also have a row of very
distinctive femoral pores just in front of the vent. The rows
forms a V-shape with pointing to the head of the gecko. A
Leopard gecko with femoral pores can be sexed as a male, but
animals without these pores are not always females. A female
Leopard gecko will almost always be without femoral pores.
Something interesting about Leopard gecko sexing is that they
have a so-called temperature-dependant sexual dimorphism. In
other words the
incubation temperature contributes to the sex of
the baby Leopard gecko. The male to female ratio is slightly
higher at warmer incubation temperatures and vice versa. |