Homologies are similarities between two species that have been jointly inherited from a common ancestor.

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Homologies are defined as similarities between two species that have a shared ancestry. These similarities may be anatomical, molecular, or developmental. An example of a homology is the similarity of the forelimbs in mammals, which can be seen in the bones of the arm and hand of humans, whales, and bats, despite the different functions and appearances of these limbs. The shared inheritance of these structures from a common ancestor is what makes them homologous.

Homologies Are Similarities Between Two Species That Have Been Jointly