Monday, October 09, 2006

Texas Spiny Lizard

(Click to enlarge)

Sceloporus Olivaceous is an active and intelligent lizard that inhabits much of central Texas. I have kept several as pets, including ones that hatched from eggs I incubated myself.
They can raise their pointed scales, which is an excellent deterrant against predators.


This view shows how effective their markings are as camouflage, and they prefer trees with similar bark for this reason.
According to one published study, they have a vestigial 'third eye' on top of their heads, under the scales. When it's covered with black tape, lizards that have been taken a few hundred meters out of their home range were unable to find their way back, while un-taped lizards ran straight to their favorite tree again.

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