How and why the Cambrian explosion occurred has been the subject of debate ever since fossils of this remarkable event were ...
If you trace the animal family tree back through the fossil record, the trail usually goes cold about 539 million years ago. Before this boundary—the start of the famous Cambrian explosion—multicelled ...
Imagine being transported 500 million years into Earth’s past, landing in a world that feels both alien and dangerously unfamiliar. You have just arrived in the Cambrian Period, a time when life on ...
The assemblage suggests that the ancestors of some of today's animal groups may have arisen before the famed Cambrian explosion ...