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In biology, analogous structures are traits that are similar to different species. It can also be defined as features of two different species that may be similar on how they function, but the structures of the two features are different. Analogies are often resulting from convergent evolution meaning it has not evolved from a common ancestral form.
The wings of the dragonfly are analogous with the wings of the birds (or other vertebrates). They evolved separately as wings but from two distinctively separate groups.
For vertebrates, bats wings are analogous with the birds. Their wings may serve as similar function and resemble in some ways but have evolved differently and/or separately.
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