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, ...

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 spotted ratfish is a two-foot-long fish with a big head and a long, skinny tail that lives in the northeastern Pacific Ocean. It belongs to a group of fish called chimaeras that are closely ...

Loading external pages may require significantly more data usage than loading CBC Lite story pages. It's not easy to have sex when you're a couple of slippery, limbless fish in the ocean. But the ...

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 ...

Researchers have discovered that male spotted ratfish, a type of ghost shark, possess teeth on their foreheads used for grasping females during mating. This challenges the traditional understanding ...