"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 ferocious predator, the great white shark.

The battle for diminishing stocks of whales and other prey may have pushed the megalodon to extinction three million years ago.

Environmental pressures, such as sea level changes, also played a role."

Helen Briggs reports for BBC News May 31, 2022. [2]