Scientists have solved the mystery of one of the animal kingdom's most disproportionately large penises thanks to a Dutch retiree recording bat sex in a church attic. The serotine bat does not use its ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Bats have long been ...

The shape and function of a penis is unique among some animals. Not every creature has one — birds, for example, simply eject sperm from their cloaca. But among male mammals, penises are widespread ...

Little is known about the mating habits of the serotine bat (Eptesicus serotinus), but the males of the species boast unusually large penises—much larger than the vaginas of the females. The purpose ...

It looks like flying isn’t the only unusual thing that bats can do compared to other mammals. New research has found a bat species whose males use their large penises like an arm during sex. Rather ...

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A common bat species with an oversized penis uses its massive member like an extra limb, not for penetrative sex. Why a bat species found in Europe and Asia has such a large penis has been a mystery ...

Add Yahoo as a preferred source to see more of our stories on Google. Researchers have found that a species of bat uses its penis in a unique way during reproduction, avoiding penetration completely.

Most mammals mate with penetrative sex, but one peculiar bat species with an oversize, bulbous penis seems to sweep that assumption aside. New video evidence suggests that during copulation, the male ...

The shape and function of a penis is unique among some animals. Not every creature has one — birds, for example, simply eject sperm from their cloaca. But among male mammals, penises are widespread ...