Resumen de The great leap forward
Robert R. Gaines, Shanan E. Peters
Gaines and Peters talk about a ancient geological mystery could explain the origin of animal life. A fossil record of that long history of simple bodies and behaviors has now been uncovered, proving that the Cambrian explosion was a real evolutionary phenomenon that needed to be explained. They propose that a geological phenomenon was a trigger for the explosion of animal life. One hallmark of the Cambrian explosion is the widespread acquisition of mineral skeletons by a number of different animal groups involving several types of minerals, such as the silica shells of microscopic organisms called radiolaria, and the calcium carbonate shells of now-extinct arthropods called trilobites.
