Just in time for summer, the megalodon—the ancient, city bus-sized shark known as the “Megatooth”—has reared its ravenous snout. While the oceans are now safe from the Megatooth, which went extinct an ...

Bowmouth guitarfish ( Rhina ancylostoma) have a striking unusual appearance: though they appear to have the tail of a shark, ...

Today, a life-size model of the now extinct predator hangs ... is based on a large group of related species – including great whites and salmon sharks. But megalodon’s closest relatives ...

While much of life became extinct during the End-Cretaceous extinction event, including all non-avian dinosaurs, sharks once again persisted. But they were still affected. Fossil teeth show that the ...

The scientists from the country's Institute for the Sea and Atmosphere dubbed the shark a "living fossil" because remains have been dated back 80 million years, making it one of very few species ...

Sharks are formidable fish, having survived multiple mass extinction over hundreds of millions of years. But how much do you ...

The prehistoric shark, which roamed Earth's oceans for over ... because biologists don't have to figure out how other species compare to the Megalodon at different ages or estimate changes to ...

A prehistoric food fight may have spelled the end for the megalodon, the largest shark that ever lived. A study of the ocean giant's fossil teeth suggests it had to compete for food with another ...

Based on an analysis of tooth enamel from nearly two dozen shark species, some contemporary and some long extinct, researchers determined that megalodons and great whites were on the same level of ...