Picture a sail-backed creature with serrated, fang-like teeth prowling a vast swampy floodplain, ruling its ecosystem with no competition in sight. You’d be forgiven for imagining a dinosaur. The sail, the predatory posture, the sheer strangeness of the body shape, all of it points toward something ancient and reptilian. The truth, though, is far more ...
Sixty-six million years ago, something ended a reign that had lasted over 160 million years. The non-avian dinosaurs, in all their extraordinary variety, vanished from every continent on Earth. What seems like a settled story turns out, on closer inspection, to be one of the most actively debated questions in all of science. The more ...
Picture a vast, frozen continent where towering mammoths move in herds across open tundra, where giant ground sloths leave trails wide enough to walk through, and where bands of people follow at a careful distance, watching, waiting, surviving. That image is not fiction. It’s the best understanding researchers currently have of how the first humans ...
If you’ve ever swatted at a dragonfly and thought it was too big, you haven’t seen anything yet. Roughly 300 to 360 million years ago, long before dinosaurs took a single step, the land that would eventually become North America was a vastly different world. It was warm, swampy, and draped in dense forests of ...
Picture a world without dinosaurs. No towering sauropods shaking the ground, no ferocious theropods ruling the Mesozoic landscape. That world almost existed, because the rise of dinosaurs wasn’t inevitable. It was the result of hundreds of millions of years of incremental, sometimes brutal, evolutionary change that began with small, unassuming creatures crawling through the forests ...
For most of the twentieth century, the story of the first North Americans seemed settled. Humans crossed a land bridge from Siberia roughly thirteen thousand years ago, spread across the continent, and left behind a distinctive set of stone tools. Tidy, teachable, and reassuringly final. Except it wasn’t. Archaeological discoveries throughout the Americas are pushing ...
Long before paleontologists gave names to mastodons and giant ground sloths, the people of North America were already telling stories about them. Centuries before Europeans arrived, native inhabitants of the Americas understood that the land had once been teeming with massive creatures, and their distant ancestors had lived alongside mammoths and mastodons, giant sloths, saber-toothed ...
For over a century, dinosaurs carried a reputation that was, frankly, unfair. The image of slow, dim-witted giants lumbering through primordial swamps stuck around long after the fossil evidence began telling a very different story. Paleontology has been quietly rewriting the script, and the revisions are remarkable. What’s emerging from the latest research is a ...
Few puzzles in paleontology have sparked as much curiosity as the question of how feathers first appeared on dinosaurs. You might assume the answer is straightforward, given how much fossil evidence scientists have accumulated over the past few decades. The reality is more layered and far more interesting. Feathers have a diverse range of shapes, ...
You might look at the Mississippi River, the Great Plains, or the Grand Canyon and take them more or less for granted. They’re just there, part of the backdrop of a familiar continent. What’s easy to miss is that none of it was inevitable. Every valley, every broad flood plain, and every dramatic canyon was ...
