Cleaning sharks' teeth? No problem. Except when they wake up and devour your head. Check out brutal, terrifying gameplay from ...

Some male “ghost sharks” have a bizarre way of giving love bites: They use teeth that sprout from their foreheads. These otherworldly animals, also known as spotted ratfish, can grab onto mates using ...

Shark teeth are a marvel of evolution. They are so sharp that many island cultures once used them as weapons and tools to hunt and cut up meat. Unlike human teeth, shark teeth line the mouths of these ...

The discovery proves it's possible for vertebrates to grow teeth outside the mouth Getty A new study discovered male ghost sharks grow teeth out of their foreheads on an appendage called a tenaculum ...

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 ...

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 ...

What is a shark without its bite? According to scientists, it's more dangerous than a shark with a full set of working chompers. Researchers in Germany say they're seeing a disturbing trend – rising ...

Sharks have been on this planet for more than 400 million years. They’re older than the first trees, the North Star, and even the rings of Saturn. They’ve seen and been through it all — but the ...

WASHINGTON — They are the ocean's most famous apex predator. But something is eating at them - acid. Rising acid levels in the world's seas will dissolve sharks' teeth - that's according to a new ...