The Cambrian Explosion: When Life Began? | The Ancients (opens in new tab)

Listen to The Cambrian Explosion: When Life Began? from The Ancients. 538 million years ago, life on Earth changed forever. In an evolutionary burst known as the Cambrian Explosion, complex animals rapidly appeared in the oceans, laying the foundations for almost every major animal group alive today.Tristan Hughes is joined by the mighty Henry Gee to explore biology’s 'Big Bang'. What triggered this extraordinary leap in evolutionary complexity? Why did creatures with eyes, shells and limbs e...