Coral bleaching has been occurring worldwide, posing a significant threat to marine biodiversity. Worse, there is the unabated hunting of herbivore fishes, such as parrotfish, surgeonfish, grass carp, ...

Vermont officials are asking hunters to submit incisor teeth from deer killed during rifle season. Biologists analyze the teeth to determine a deer's age, health and other population data. This data ...

Earlier this year, researchers at the University of Washington published a paper in the Proceedings of the National Academy of Sciences on the spotted ratfish, sometimes called a ghost shark. It’s one ...

Deep in the waters along the Atlantic Coast swims a fish that looks like it’s smiling—because it almost is. Known as the Sheepshead Fish, it has an unsettling set of teeth that closely resemble human ...

Scientists discovered true teeth growing on the head of the spotted ratfish, a distant shark relative. The toothed structure, called a tenaculum, helps males hold onto females during mating. Genetic ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. What’s the weirdest thing you learned this week? Well, whatever ...

To say spotted ratfish are unusual is an understatement. Related to sharks, they abound in the inky dark depths of the Puget Sound. Armed with a venomous fin, they swim gracefully along the sea floor ...

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 ...

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 ...

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 ...

When it comes to teeth, vertebrates have a lot in common. No matter the shape, size or sharpness, teeth share genetic origins, physical characteristics and, of course, a home in the jaw. New findings ...

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 ...