But it was not as rapid as an explosion: the changes seems to have ... It has long been suspected that the sparseness of the pre-Cambrian fossil record reflects these two problems.

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 ...

Morgan Stanley analyst Adam Jonas believes AI will transform more than how students write essays. It will change just about everything.

FROM 508 MILLION YEARS AGO TO TODAYPreserved in the Burgess Shale of British Columbia, the worm Canadia spinosa was part of an explosion in biodiversity during the Cambrian period that gave birth ...

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 ...