insatiable fuck-fest in nature

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From the National Geographic magazine to nature shows, animals are truly a fascinating breed of species. Sex determination can be robustly genetic, strongly environmental, or genetic subject to environmental perturbation. NATURE, television's longest-running weekly natural history series, has won more than 200 honors. Neighbors say wild sex deadly — for genetically. According to a new study, male snakes work much harder and longer than the females do to mate, and it takes more out of them.

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