Assertion: vampire bat's adaptation | /r/HasProperty | due
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Source sentences:
text: This rapid adaptation is due in part to their harsh reproductive habits; in order to mate, the male must overpower the larger, tougher female to stab through her exoskeleton with his bladed genitalia, and the female must be strong enough to survive these wounds to lay her eggs, meaning only the toughest of both sexes will pass on their genes.