Serotine bats are the first mammals found to have non-penetrative mating
Bats Discovered to Have Sex in a Way That’s Similar to Birds - The New York Times
Well-Endowed Bat Becomes First Mammal Known To Reproduce Without Penetration | IFLScience
Bat uses its huge penis like an arm during sex | New Scientist
These bats use their penis as an 'arm' during sex but not for penetration
Dutch retiree helps solve mystery of strangely large bat penis | National | themoorecountynews.com