minus-squarestephen01king@piefed.ziptoNot The Onion@lemmy.world•'Ghost sharks' grow forehead teeth to help them have sex, study suggestslinkfedilinkEnglisharrow-up1·8 days agoMale sharks use teeth to hold female sharks during copulation, but ghost shark teeth are small and not suited for that purpose, so they evolved another set of teeth on their forehead to do the same job. linkfedilink
Male sharks use teeth to hold female sharks during copulation, but ghost shark teeth are small and not suited for that purpose, so they evolved another set of teeth on their forehead to do the same job.