Bullfrogs mating

Bullfrogs mating

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Credit: KENNETH H. THOMAS/SCIENCE PHOTO LIBRARY

Caption: Bullfrogs (Lithobates catesbianus, formerly Rana catesbeiana) mating. Female bullfrogs show great asynchrony in the timing of periods of ovulation and sexual receptivity. The duration of sexual activity for any individual female is extremely short, generally lasting only one night. During this period, the female actively moves from male to male and/or territory to territory. Mate selection is based on the females' choice and amplexus doesn't occur until the female makes physical contact with the male. Ludlow, MA.

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Keywords: amphibia, amphibian, amplexus, animal, animal sex, animal sexuality, anura, anuran, aquatic, behavior, behaviour, bull frog, bullfrog, copulating, copulation, fauna, female, frog, lithobates, lithobates catesbeianus, lithobates sp., male, massachusetts fauna, mate, mating, north america fauna, north american fauna, pair, rana, rana catesbeiana, rana sp., ranid, ranidae, true frog, united states fauna, us fauna, wild, wildlife

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