The Triassic period ended with devastating changes to the environment, including volcanic eruptions and climate change, and it resulted in many of the species that lived in that period to die. Thankfully, this was far from a complete loss of life on earth, as certain species managed to survive, evolve, or emerge after the destruction had died down. These new and old creatures helped to make up the Jurassic Period, a period which was considered home by many of the most famous dinosaurs.

Unlike in the Triassic Period, dinosaurs in the Jurassic Period tended to be much larger. This period was a time where creatures like the Stegosaurus and Allosaurus lived. The biggest of all were the Sauropods, long necked herbivores such as the Brachiosaurus and Brontosaurus, with some growing up to over 100 feet tall. They were likely less aggressive than other dinosaurs of that period, and they tended to move in big herds similar to certain modern day animals. 

In the sky, Pterosaurs thrived, having survived the extinction event which had killed many other species. However, they  changed and diversified drastically in order to adapt and survive. They evolved to have lighter, more hollow bones and they changed in skull size and shape in order to deal with the evolutionary pressures that came with flight. They remained largely unchallenged as the apex predators of the prehistoric skies.

Meanwhile in the oceans, predators were everywhere. The Plesiosaur survived the extinction events like the Pterosaurs did, as did the Ichthyosaurus. They remained the dominant aquatic species, and would largely remain that way up until the start of the Cretaceous period.

The Jurassic period would end up concluding not with a grand extinction event, but rather with a shift in dominant species. Different animals would end up rising to the top of the food chain, marking an end to the Jurassic period.