Paleontologists in Argentina have uncovered dinosaur fossils that may belong to the largest land animal to ever walk the Earth.
Contrary to popular belief, becoming a fossil can be easy instead of hard, and fossils can be abundant instead of rare. It all depends on what an organism is made of, where it lives and dies, and what happens next in the dust-to-dust process—preservation or natural recycling. Continue reading How Do Fossils Form?
Hundreds of millions of years ago, massive ice caps sheathed Earth’s continents from coast to coast. Only the peaks of the planet’s mountains stood above the ice as glaciers ground and crushed their way through the bedrock, meandering slowly toward the snow-covered plains. Where the glaciers met the oceans, huge blocks of ice and rock calved from the glaciers and dropped into the sea. Life, mostly algae, cyanobacteria and other bacteria, somehow persisted in the small ice-free pockets of ocean water. Like an icy planet in a distant solar system, Earth during its formative years, a juvenile phase known as the “Snowball” Earth, was a far different place than the mostly blue planet of today. Continue reading How Does Earth’s Carbon Cycle Work?
Meet the titanosaur. It’s the newest exhibit at the American Museum of Natural History, and it’s a dinosaur cast so large it doesn’t even fit into a single room.
A new dinosaur species sheds some light on how duck-billed dinosaurs got their crests. Paleontologists say Probrachylophosaurus bergei is a missing link between two other species, and it fills in vital pieces of the story of how crests evolved.
Look out your window, and you may just spot a living dinosaur. Instead of slipping into total annihilation 66 million years ago, the avian line of dinosaurs managed to not only survive but thrive in the aftermath of a mass extinction, giving rise to modern birds.
Dinosaurs fossils, we’ve all been taught, consist of bone—their flesh, skin, and organs having decayed long ago. But a new discovery might upend that assumption: Scientists have foundevidence of blood cells with the protein intact in eight fossils which were not even particularly well-preserved.