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Define atavism. Give two examples of ata...

Define atavism. Give two examples of atavism.

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Atavism. It is the reappcarance of certain ancestral characters which had either disappeared or were reduced. There are present some examples of atavism in human beings, viz., the power of moving ear pinna in some persons, greatly developed canine teeth, exceptionally long dense hairs, short tail in some babies and presence of additional mammae in some individuals.
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