This daily feast-and-famine cycle in oxygen availability created an intense physiological challenge for early animals, ...

This stunning and unique evolutionary flowering is termed the "Cambrian explosion," taking the name of the geological age in whose early part it occurred. But it was not as rapid as an explosion ...

The Cambrian explosion saw life take on a staggering array of forms around 539 million years ago, a few of which are ...

The Cambrian Explosion saw an incredible diversity of life emerge, including many major animal groups alive today. Among them were the chordates, to which vertebrates (animals with backbones ...

The Grand Canyon may rewrite the textbooks on the Cambrian Explosion—a key turning point in Earth's history when there was a sudden boom in complex life and the emergence of all the major animal ...

pushing forward a Cambrian explosion of new opportunities in space. The Air Force Research Laboratory is the primary scientific research and development center for the Department of the Air Force.

Scientists who study such things call this the "Cambrian explosion" because it was a period of rapid evolution. Major animal groups emerged, competition and predation for food resources increased ...

Then, about 540 million years ago, something else changed ... dramatically. It was the time of the Cambrian Explosion, an eruption of life when Earth’s very first animals began appearing in the ...

The fossils here record an explosion of life around 540 million years ago, during the Cambrian period, known as the ‘Cambrian explosion’. He explains a speculative theory that the evolution of ...

This stunning and unique evolutionary flowering is termed the "Cambrian explosion," taking the name of the geological age in whose early part it occurred. But it was not as rapid as an explosion ...