The mustaches of male Mexican molly fish were found to attract females. “Males will touch the females’ genital region with their mouth prior to mating,” explained Ingo Schlupp, a mustachioed ichthyologist.
The mustaches of male Mexican molly fish were found to attract females. “Males will touch the females’ genital region with their mouth prior to mating,” explained Ingo Schlupp, a mustachioed ichthyologist.