Friday, June 25, 2010

Vestigial Structures



Vestigial structures are structures that do not serve a purpose, yet are still there. The photo above is of my ear, an ear with muscles that are vestigial. Monkeys have muscles in their ears that help them listen for predators. In humans, these muscles have no function for some reason. Therefore, they are vestigial. The human tailbone is another example, along with the appendix.

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