The Cambrian sea was a very strange and alien place. Evolutionary biologist Stephen Jay Gould described the animals that lived there in his book Wonderful Life: The Burgess Shale and the Nature of ...

almost all major forms of animal life suddenly appeared to be in existence as part of an event known as the Cambrian explosion. However, several of these creatures that emerged were quite strange ...

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 ...

All animal evolution for the last half billion years has come from tinkering with these Cambrian body plans. Then, between about 570 and 530 million years ago, another burst of diversification ...