A new study by Prof. Ariel Chipman of The Alexander Silberman Institute of Life Science at the Hebrew University of Jerusalem ...

Geologic Time is a crucial concept to understanding the history of the earth—including the evolution of life ... In turn, the extinction of the dinosaurs and several other animal groups 65.5 million ...

produced the most intense burst of evolution ever known. The Cambrian Explosion saw an incredible diversity of life emerge, including many major animal groups alive today. Among them were the ...