Even sharks’ famous tooth-regrowing ability may not save them from ocean acidification. Researchers found that future acidic waters cause shark teeth to corrode, crack, and weaken, threatening their ...

They spend the day digging through ancient South Carolina layers packed with shark teeth, bone, and marine fossils. There are good finds everywhere, but one moment changes the whole video. A big tooth ...

FERNANDINA BEACH, Fla. – The beach near Fort Clinch State Park in Nassau County draws visitors for all kinds of reasons. From scenic views to fishing to the chance to find artifacts with a metal ...

Megalodon teeth are the largest of all shark species. With teeth that can measure up to the size of a human hand, it is easy to imagine just how enormous these ancient sharks were. However, there is ...

Ghost sharks have evolved rows of true teeth on a bizarre forehead rod used for mating. Fossil and genetic evidence revealed the tenaculum’s teeth develop the same way as those inside the mouth, ...

🛍️ Amazon Big Spring Sale: 100+ editor-approved deals worth buying right now 🛍️ By Lauren Leffer Published Aug 27, 2025 1:00 PM EDT Add Popular Science (opens in a new tab) Adding us as a Preferred ...