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 ...

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

Something dramatic happened about 500 million years ago called the Cambrian "explosion," during which an incredible diversity ...

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 ...