The Cambrian Explosion saw an incredible diversity of life emerge, including many major ... a wormlike creature that swam in middle Cambrian seas. Fossils found in the Burgess Shale of British ...

Life was flourishing long before the Cambrian "explosion". The question of how so many immense changes occurred in such a short time is one that stirs scientists. Why did many fundamentally ...

Scientists until then had believed that the Cambrian explosion was the point when life on Earth opened out, kaboom, like a starburst of wondrous beasts—elaborate and sizable beings (we call them ...

dramatically. It was the time of the Cambrian Explosion, an eruption of life when Earth’s very first animals began appearing in the fossil record — the ancestors of all major animal groups ...