When dinosaurs lived, Earth looked very different from the planet we know today. The continents were not separated like they are now. Instead, they were once joined together into a massive supercontinent called Pangaea. As time passed, the land slowly broke apart, forming the continents we recognize today.

The climate also kept changing. Some periods were hot and dry, while others were warm and full of lush forests. There were no polar ice caps for much of the Age of Dinosaurs, which allowed plants and animals to thrive in many regions. Volcanoes erupted more often, sea levels rose and fell, and new environments constantly formed.

Dinosaurs had to adapt to these changes to survive. Some evolved long necks to reach tall plants, others developed sharp teeth for hunting, and some grew feathers for warmth or display. Earth’s constant changes shaped how dinosaurs lived, evolved, and eventually disappeared.