Add Yahoo as a preferred source to see more of our stories on Google. Let's talk about (ratfish) sex, baby. After analyzing the tissue, researchers discovered these are actual mouth teeth growing out ...

There’s no shame at all in having problems in the bedroom, but ‘sorry, my forehead teeth won’t get up,’ might be a new one. Male ratfish, also called ghost sharks, live in the depths of the ...

The researchers identified teeth on the tenaculum of ancient relatives to the modern adult male spotted ratfish. This fossil record helped them establish the historical significance of this structure, ...

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Researchers studied the male spotted ratfish's tooth-covered forehead appendage, which flares out to ward off rivals and grip onto females. Reading time 3 minutes Spotted ratfish are scaleless, rabbit ...

There’s a lot of diversity of form among fishes. What we generally think of as standard features (fins, scales and teeth) can present in all sorts of interesting ways from group to group and species ...

CT (computed tomography) scan of the adult male Spotted Ratfish frontal clasper (Tenaculum) covered in rows of teeth (rainbow colors). Male “ghost sharks” — eerie deep-sea fish known as chimaeras that ...

A study in the Journal of Morphology shows how the bizarre prehistoric ratfish called a Helicoprion ate with its unique set of choppers. A Helicoprion was a prehistoric ratfish that featured perhaps ...

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