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Examines the megalodon, a gigantic shark that could reach a length of 16 to 20 meters. Since these majestic giants went extinct at least 2.6 million years ago, there are few remains for scientists to study.
A unique archaeological site in Egypt may help solve the mystery of how prehistoric land mammals evolved into superior sea predators.
Archaeological evidence may explain why mammoths suddenly disappeared from the steppe landscapes of the northern hemisphere.