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, ...

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 ...

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 ...