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What causes lizards to do the 'pushup' looking thing?

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It is likely that lizards often do push-ups in order to create depth perception via motion parallax. The related behavior of head-bobbing in birds has been researched and appears valid. read more

It is likely that lizards often do push-ups in order to create depth perception via motion parallax. The related behavior of head-bobbing in birds has been researched and appears valid. Animals with monocular vision, such as birds and lizards, can achieve a rough approximation of stereo vision such as human have, by moving their heads up and down or forward and back while staring at specific objects. read more

The lizards do “pushups” or “head bobbing” as a display of strength. This may have two functions - one is to intimidate an intruder and the other is to attract members of the opposite sex. The fact is when these lizards are kept in captivity in zoo they might start doing these “pushups” when it feels the visitors are intruding its space. read more

Lizards work out for the same reason a guy at the gym might: as a display of strength. And with lizards, as can be the case with men, the push-ups also mean "get out of my territory." And a new study finds some lizards make a morning and evening routine out of the displays. read more

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