Theropod dinosaurs, especially the megatheropods, were the most massive terrestrial predators in Earth's history. The biggest megatheropods, the carcharodontosaurids and tyrannosaurs, surpassed ten tonnes, making them predatory animals twice the size of African elephants. This video analyzes why theropod dinosaurs became the biggest land predators ever, diving into ecological factors and potential hypotheses including temperature, reproductive success, and predator-prey arms races.

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