Great white sharks likely played a role in the extinction of the megalodon, but they weren’t the sole cause. During the same period, significant climate changes occurred due to the ice age. This caused many of the megalodon’s preferred prey to move to colder waters, while the megalodon stayed in warm waters. With fewer food sources and increased competition from more agile great whites, the megalodon struggled to survive. So, the extinction was the result of a mix of factors, not just great whites alone.