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Pertaining to structures or
organs that were well developed in an organism's ancestors but have
become
rudimentary during the course of evolution. |
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Small or degenerate. Describes a characteristic of an animal or plant
which has receded from a useful structure in an ancestral form that is
now small, poorly developed, and/or non-functional., a remnant of a body
part that existed in a former species of an organism. (Eg. Whales have
tiny, vestigial hind legs buried deep in their bodies)
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