See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Sharks' teeth—some of nature's sharpest and most formidable weapons—may ...

While many people are scared of sharks thanks to their rows of razor-sharp teeth, the changing waters might be rendering the creatures from “Jaws” a little less fearsome. Growing acidity in the ...

PORTLAND, Maine — Sharks are the most feared predators in the sea, and their survival hinges on fearsome teeth that regrow throughout their lives. But changes in the ocean's chemistry could put those ...

Shark skin is specially designed for a life lived on the move. Its surprisingly spiny texture has even given designers ideas ...

The ragged tooth shark is one of the scariest-looking species out there, but they are surprisingly docile. Read here about ...