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Vestigiality describes homologous characters of organisms that have seemingly lost all or most of their original function in a species through evolution.

A penguin uses its wings to 'fly' underwater, the animal being aqua-dynamic; an eagle uses its wings to fly in air, the animal being aerodynamic.

Neither sets of wings are vestigial structures.

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Related Questions

What is a penguins vestigial structure?

A penguin's vestigial structure is its wings. Penguins have evolved to be flightless, so their wings are no longer used for flying. Instead, they have adapted to use their wings for swimming in the water.


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What is an example of vestigial structure?

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Is an example of vestigial structure?

ostrich wings, or the appendix in humans


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What feature of a kiwi is vestigial?

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