Here's why:
* Rapid Diversification: The Cambrian Explosion was a period of rapid evolution and diversification of life forms, leading to the emergence of many new animal phyla (major groups of animals) and body plans.
* Complex Life: This period saw the development of more complex organisms with hard body parts like shells and skeletons, which are better preserved in the fossil record.
* Evolutionary Burst: The Cambrian Explosion marks a significant shift in the history of life, with the evolution of more complex and diverse organisms, paving the way for further evolution and the development of ecosystems we see today.
While life forms existed before the Cambrian, it was this period that saw the most significant and dramatic increase in complexity and diversity, marking a turning point in the history of life on Earth.
