An international team of American and Chinese paleontologists has discovered a new species of mammal that lived 125 million years ago during the Mesozoic Era, in what is now the Hebei Province in ...

This video explores how geography, climate, and continental drift shaped the evolution of dinosaurs during the Mesozoic Era.

When astronomers search for worlds that could possibly host life, they’re operating off of just one example: Earth. So far as we can tell, our specific cocktail of nitrogen, oxygen, and other trace ...

The Toarcian Oceanic Anoxic Event (T-OAE), a major environmental upheaval occurring approximately 183 million years ago during the Mesozoic Era, stands as one of the most severe perturbations to Earth ...

Scientists recently discovered the skull of an extremely tiny, bird-like dinosaur that could be the smallest known species of the Mesozoic era—the period in which giant dinos like brachiosaurus, ...

Step back in time to the Mesozoic Era, where dinosaurs ruled the Earth. With this quiz, you’ll encounter iconic giants like the T. Rex and the Stegosaurus, clever predators like the Velociraptor and ...

The Mesozoic Era, the Age of Dinosaurs, is sometimes also referred to as the Age of Reptiles. Not only were dinosaurs, which were reptiles, all over the continents, but reptiles also ruled the seas.

The Mesozoic era, traditionally renowned as the age of dinosaurs, also marks a period of remarkable innovation in the evolution of early mammals. Mammaliaforms diversified into a variety of ecological ...

Picture a baby Brachiosaurus the size of a golden retriever, hunting for food with its siblings while dodging predators that would happily eat it. Meanwhile, its parents—towering over 40 feet tall—are ...

When searching for exoplanets with potentially habitable atmospheres, astronomers really only have Earth as an example of what to look for. But a new study says that a past era of Earth may be a ...