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.

Imagine a world teeming with life, but not as we know it—a planet bursting with creatures so bizarre they seem plucked ...

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 ...

is known as the Cambrian explosion. The evolution of the eye is likely to have been a catalyst for the explosion, initiating an arms race between organisms that were increasingly aware of their ...

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 ...

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.