The age of dinosaurs was a trying time for survival. Vicious carnivores lived amongst enormous herbivores. The climate was often unforgiving. During the Triassic period, for example, the planet was hot, dry and covered in desert. And there were no polar ice caps to escape the burn.
Earthquakes and volcanic eruptions were a plenty, eventually breaking up the global continental block of Pangea. All the while, theropods tried their best to hold on to their status at the top of the food chain. This resulted in some ever-so-scary beasts.
The Scariest Dinosaurs
Humans should be glad they weren't around when these frightening dinosaurs terrorized the landscape. Here are seven of the scariest dinosaurs the world has ever seen.