Ever wonder why sharks have so many differently shaped teeth or why they keep regrowing throughout their lives? Dr. David ...

Sharks are some of the most fearsome predators in the ocean, but did you know they have a secret superpower? Unlike humans, ...

They mostly eat fish, but will also catch turtles and other species ... there is another ready to replace it, like a conveyor belt. By replacing their teeth regularly, they ensure their teeth remain ...

The authors’ discovery of apparently cooked fish teeth would be the earliest documentation of the food preparation method by hominins, the scientists write in the study. Investigating this theory, the ...

A new study shows that the ease with which these fish can develop a biological innovation (complex teeth), not just the innovation itself, enables this rapid evolution. It’s not what you do ...

He managed to hook one and, after reeling it in, was shocked to see the fish seemingly grinning at him with a "mouth full of teeth." Martin described the moment he caught the toothy fish ...

The fossilized remains of a newly discovered ancient shark species found in the depths of Kentucky’s Mammoth Cave National Park reveal not the sharp, pointy gnashers you’d associate with Hollywood’s ...