George Gaylord Simpson was a prominent American paleontologist and evolutionary biologist, known for his influential work in the field of vertebrate paleontology. He played a significant role in developing our understanding of evolution and contributed extensively to the Modern Synthesis, which integrates genetics with Darwinian evolution. His research focused on the fossil record and how it supports evolutionary theory, particularly in mammals. Simpson's most notable work includes the book "Tempo and Mode in Evolution,"...