Google Facts™ [ ️@googlefactss🌎]
@googlefactss · Post #40826 · 03/18/2026, 11:01 PM
Adult male echidnas 🦔 have a unique four-headed penis, a specialized reproductive organ used for mating, where they alternate using two heads at a time. This adaptation is thought to increase fertilization success during intense competition when multiple males form “mating trains” behind a single female, each waiting for a chance to reproduce. Only two heads are used per erection [Read more] @googlefactss#mammals#sexuality#mating#natureisbeautiful