Serotine Bats Mate Without Penetration

Serotine Bats' Unique Reproduction: No Penetration Required, Study Reveals

These bats copulate for hours with enormous penises but no penetration

The secret sex lives of bats: Study reveals how males have penises 7 times longer than their partners' vaginas - and use them as an 'arm' during romps that can last up

Retiree records bat sex in church attic, helps scientists solve mystery of species' super long penis - CBS News

Eptesicus serotinus: Unusual mating behavior discovered in mammals for the first time

Researchers discover bats have 'disproportionately long penises' as non-penetrative sex documented in mammals for first time - Nottinghamshire Live

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These bats are the only mammals known to mate more like birds