Title: The Expansion of Our Understanding of Life: A Look at Key Developments in Evolutionary Thought and the Influence of One Scholar’s Contribution In Chapter 2 of our textbook, “Key Developments in Evolutionary Thought,” we are introduced

In this post, please begin by referring to the section Key Developments in Evolutionary Thought in Chapter 2 (pages 21-22). Which key development on this list do you find the most interesting and important? Please choose one (1) scholar (except Charles Darwin) and briefly discuss how their contribution led to an expansion of our understanding of life on this planet.
Conclude this post by drawing a connection between this scholar’s work and Charles Darwin’s groundbreaking idea of ‘natural selection.’ Please watch this PBS video on evolution to get a brief overview of Charles Darwin’s lasting contribution to science.
It is crucial to include quotes and chapter/page numbers in your post. 
Sources 
Chapter 2 pages attached 
Video- https://m.youtube.com/watch?v=dyiZaHIRM6w