Resultados para "animales" en Ciencias de la Tierra

Approximately 200,000 years ago, as modern humans began to radiate out from their evolutionary birthplace in Africa, Neanderthals were already thriving in Europe - descendants of a much earlier migration of the African genus Homo. But when modern humans eventually made their way to Europe 45,000 years ago, Neanderthals suddenly vanished.

A fascinating, comprehensive, accessible account of conodont fossils—one of paleontology's greatest mysteries. Simon J. Knell takes the listener on a journey through 150 years of scientific thinking, imagining, and arguing. Slowly the animal begins to reveal traces of itself: its lifestyle, its remarkable evolution, its witnessing of great catastrophes, its movements over the surface of the planet, and finally its anatomy. Today the conodont animal remains perhaps the most disputed creature in the zoological world.

More than half a billion years ago, our world was completely covered by glaciers, a "Snowball Earth" that persisted for millions of years. Incredibly, this unimaginable cold led to the remarkable diversification of life on earth known as the Cambrian explosion. With a geologist's eye and a knack for storytelling, Graham Shields explores when and how such inhospitable conditions enabled animals to evolve, radiate, and diversify into our earliest ancestors.

A sweeping and revelatory new history of the age of dinosaurs, from one of our finest young scientists. ""THE ULTIMATE DINOSAUR BIOGRAPHY."" — Scientific American The dinosaurs. Sixty-six million years ago, the Earth’s most fearsome creatures vanished. Today they remain one of our planet’s...

New from the author of the acclaimed bestseller The Rise and Fall of the Dinosaurs (“A masterpiece of science writing.” —Washington Post) and “one of the stars of modern paleontology” (National Geographic), a sweeping and revelatory history of mammals, illuminating the lost story of...

A fascinating, entertaining dive into the long-standing relationship between humans and insects, revealing the surprising ways we depend on these tiny, six-legged creatures. Insects might make us shudder in disgust, but they are also responsible for many of the things we take for granted in our...