homologous structure is not in our dictionary (yet). Here's what it could mean:

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noun

An organ or body part in one species that shares a common ancestral origin with a corresponding feature in a different species, regardless of any differences in current function.

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The wing of a bat and the arm of a human are a classic example of a homologous structure, revealing a shared evolutionary past.

From AI

By identifying homologous structures in the fossil record, scientists can map out the branching pathways of evolutionary descent.

From AI