Animals Use Auricular Muscles to Swivel Their Ears to Home

question 38

Multiple Choice

Animals use auricular muscles to swivel their ears to home in on sounds.Humans have auricular muscles but we can't turn our ears.So why do humans have auricular muscles?

• A)People who can wiggle their ears due to auricular muscles have a reproductive advantage.
• B)They are still needed to help us swallow and retract our tongue.
• C)They are vestigial structures we inherited from mammalian ancestors
• D)They are needed in the development of the human embryo but not in the adult.

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