“Although fossils from the Great Plains of North America indicate a decline in dinosaur diversity, this may have been a local phenomenon rather than a global one,” the researchers wrote. “It is possible that global cooling in the Late Cretaceous hit high-latitude environments hard, reducing diversity. But the African dinosaur fauna hints that dinosaurs flourished and even diversified at low latitudes. If this is true, then this means that the dinosaurs were destroyed in their prime. “The study of Africa’s last dinosaurs, especially the diversity of predators revealed, suggests that dinosaurs flourished here just before their extinction.”