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It depends on the species. Lizards use their tongue for smelling to aid it in finding food. When a lizard flicks its tongue, it is picking up odors. When its tongue returns to its mouth the scent passes by an organ called the Jacobson's organ. Tissues of the Jacobson's organ process the scents thus allowing the lizard to identify the substance or object. Most lizards use their tongue to drink water. Some will use their tongue to lick clean their "lips". The gecko uses its tongue to clean its eyes since it does not have eyelids. The chameleon uses its tongue to catch prey.

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14y ago

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