Dinosaurs

Mounting evidence from dinosaur bones shows that, contrary to common belief, organic materials can sometimes survive in fossils for millions of years

A long-cherished view of how and why feathers evolved has now been overturned

The American West once harbored multiple communities of dinosaurs simultaneously—a revelation that has scientists scrambling to understand how the land could have supported so many behemoths

By analyzing previously overlooked fossils and by taking a second look at some old finds, paleontologists are providing the first glimpses of the actual behavior of the tyrannosaurs

Some 70 million years ago a group of hardy dinosaurs thrived in the harsh climate of what is now Alaska

Yesterday's big reptiles can help us figure out how the human era is shaping up By Mary H. Schweitzer

The world's fourth-largest island divulges fossils that could revolutionize scientific views on the origins of dinosaurs and mammals

Their excellent night vision and apparent warm blood raise a question: Could they have survived icehouse conditions at the end of the Cretaceous period?

Modern birds, long thought to have arisen only after the dinosaurs perished, turn out to have lived alongside them

On a trip to the Gobi Desert, a team of fossil hunters unearths a death scene that reveals new clues about how dinosaurs lived

Kids searching for fossils using SharkFinder kits at Scientific American’s booth at the USA Science & Engineering Festival. Credit: Jason Osborne Jason Osborne was trying to grab a quick lunch away from the crowds when his wife called his cellphone.

Sometimes you never know where your work will end up. Take this figure depicting the evolution of whales that I created for Jerry Coyne’s book, Why Evolution is True.