Asked by: Jason Goodyer, Bristol

Advertisement

Yes. The males of the Phallostethidae family of fish, which live in rivers in Southeast Asia, have a sex organ positioned under their chin, just behind their mouth. It consists of a rod for injecting sperm and a separate serrated hook for holding on to the female’s head, which guarantees no sperm gets lost in the strong river currents.

Read more:


Advertisement

Subscribe to BBC Science Focus Magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun facts.

Authors

luis villazon
Luis VillazonQ&A expert

Luis trained as a zoologist, but now works as a science and technology educator. In his spare time he builds 3D-printed robots, in the hope that he will be spared when the revolution inevitably comes.

Advertisement
Advertisement
Advertisement