Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. When dinosaurs ...

(Phys.org) —Dinosaurs dominated the landscape for more than 100 million years, but all that remains today are bones. This has made it difficult to solve a long-standing and contentious puzzle: were ...

Imagine trudging through a fern-filled forest 150 million years ago, and witnessing a towering mama dinosaursaurus giving a nice dressing down to a baby dinosaursaurus for having too much screentime!

A microbiologist is proposing the idea that the reign of dinosaurs forced mammals to speed up their reproductive cycle, ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American The Mesozoic was not a ‘dinosaurs-only theme ...

In the Mesozoic, the time of the dinosaurs, from 252 to 66 million years ago, marine reptiles such as ichthyosaurs and plesiosaurs were top predators in the oceans. But their origins and early rise to ...

The Mesozoic ocean may have been one of the most dangerous places in Earth’s history, filled with predators that still feel unreal today. Fossils reveal massive jaws, strange body shapes, and hunting ...