This is a citation of an outside article. Gravyday is not responsible for its content. Original URL below. https://www.sciencenews.org/article/great-white-sharks-megalodon-food-competition-extinction For millions of years, megalodon sharks were top ocean predators — and then came the great whites. New analyses of teeth hint that competition for food from great white sharks may have helped give the megatoothed giants an extra shove toward extinction.(more)