A juvenile spotted ratfish. These deep-sea fish are named for their long, rat-like tails. Gareth J. Fraser, University of Florida Deep in the ocean, you can find a strange fish with teeth not just in ...

Scientists studied how the sea creatures, also known as chimaeras or ghost sharks, ended up with one of evolution’s most bizarre appendages. By Jack Tamisiea Life in the ocean’s dark depths can be ...

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 ...

The audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to continually review and improve the results. The spotted ratfish ...

Ghost sharks have evolved rows of true teeth on a bizarre forehead rod used for mating. Fossil and genetic evidence revealed the tenaculum’s teeth develop the same way as those inside the mouth, ...

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, ...

Deep in the ocean, you can find a strange fish with teeth not just in its mouth, but also on its head. The spotted ratfish, a relative of sharks, measures about two feet long and is found in the ...