Adult Lizards (IMAGE)

BMC (BioMed Central)

Adult Lizards

Caption

The chameleon's exceptional tree-climbing ability is dependent on vital ball-and-socket joints in its wrists and ankles, according to research published in the open access journal BMC Evolutionary Biology. The study also finds that chameleons have twice the number of wrist and ankle skeletal elements than previously thought, and explains how they evolved to live in the trees.

Credit

Diaz and Trainor, <em>BMC Evolutionary Biology</em> 2015

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