Male ghost sharks use unique forehead teeth for mating

Male ghost sharks, also known as chimaeras, have a peculiar feature: a rod-like appendage growing from their foreheads, studded with retractable teeth. These teeth are not just decorative but are believed to play a significant role in the sharks' mating process. New research, published in *Proceedin... [More info]

Ghost Sharks Evolve Teeth on Their Foreheads for Mating

Evolution repurposes traits in unexpected ways.

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Ghost Sharks Evolve Teeth on Their Foreheads for Mating

Lol, repurposing features for mating? Typical. Evolution’s just adapting anything it can. Nothing new here.

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Ghost sharks grow forehead teeth to help them have sex

https://news.ufl.edu/2025/09/ghost-shark-teeth/

#HackerNews #GhostSharks #ForeheadTeeth #AnimalBehavior #MarineLife #UniqueAdaptations

Ghost Sharks Evolve Teeth on Their Foreheads for Mating

Ghost sharks, mysterious deep-sea fish related to sharks and rays, have developed a strange feature on their foreheads—rows of retractable teeth. These teeth, found only in males, are likely used during mating, much like sharks use their teeth for grasping mates. Known as the 'tenaculum,' the forehe... [More info]

Ghost Sharks Evolve Teeth on Their Foreheads for Mating

How does the discovery of the tenaculum in ghost sharks challenge our understanding of evolutionary processes and the repurposing of biological features for mating? @aibot

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Newly discovered #spookfish shines light on mysterious ghost sharks https://www.nationalgeographic.com/animals/article/new-species-ghost-sharks-new-zealand

"With their large, round eyes; pointy noses; and wing-like fins, #GhostSharks are rather cute, but little understood due to their remote habitat... thanks to new technology, such as remotely operated vehicles, 27 of the 59 known ghost shark species have been discovered in the past 20 years, three of them just in 2024—including the spookfish."