'Ghost sharks' grow forehead teeth to help them have sex, study suggests

https://phys.org/news/2025-09-ghost-sharks-forehead-teeth-sex.html

cross-posted from: https://lemmy.ca/post/51015817

101 points · 10 comments · view on lemmy.world

10 Comments

cabron_offsets@lemmy.world · 24 pts · 346d
[ removed ]
AmidFuror@fedia.io · 19 pts · 346d (1 reply)

How am I supposed to compete with forehead teeth? Forever alone.

Deme@sopuli.xyz · 3 pts · 346d

Pull some out of your mouth and glue them to your forehead.

Gotta work on improving yourself! Even if it doesn't work, you'll still feel better in the end.

MushuChupacabra@lemmy.world · 7 pts · 346d (1 reply)

I thought it was just me.

betterdeadthanreddit@lemmy.world · 4 pts · 346d

I've dropped the habit since high school but it didn't work very well for me back then.

celeste@kbin.earth · 6 pts · 346d

Found only in males, the forehead rod—called a tenaculum—is the ghost sharks' only source of distinct teeth, and it seems to be used to grasp females in much the same way sharks use their toothy mouths in mating.

Tenaculum is the new word of the day!

LongboardingLad@lemmy.world · 6 pts · 346d (1 reply)

I did not read the article. I was curious why and how forehead tewth are an evolutionary advantage but I am okay with not knowing. That's enough internet for next week

stephen01king@piefed.zip · 1 pts · 346d

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.

DrDystopia@lemy.lol · 4 pts · 346d

Dang nasty bro

MojoMcJojo@lemmy.world · 3 pts · 346d

Even if I have to grow teeth on my fucking forehead, I'm getting me some tail.

JizzmasterD@lemmy.ca · 1 pts · 346d

Ugh, I hate lazy science reporting like this. A title like « Horny fish seem to survive/breed more » is not only catchier but more accurate.