Vestigial Structures

Science / Biology / Vestigial Structures: Nonfunctional remains of organs that were functional in ancestral species and may still be functional in related species; e.g., the dewclaws of dogs.

Other Words for Vestigial

Vestigial Adjective Synonyms: imperfect, undeveloped, underdeveloped, rudimentary, incomplete
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Vestigial Structures

Science / Biology / Vestigial Structures: Nonfunctional remains of organs that were functional in ancestral species and may still be functional in related species; e.g., the dewclaws of dogs. MORE

Homologous Structures

Science / Biology / Homologous Structures: Body parts in different organisms that have similar bones and similar arrangements of muscles, blood vessels, and nerves and undergo similar embryological development, but do not necessarily serve the MORE

Analogous Structures

Science / Biology / Analogous Structures: Body parts that serve the same function in different organisms, but differ in structure and embryological development; e. g., the wings of insects and birds. MORE

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