For many years, Stephen Jay Gould brought the complexities of science to the general public through his monthly articles in Natural History magazine. His compelling writing style combined with the philosophy of a Renaissance man provided insights into the fields of geology, paleontology, and evolutionary biology, making accessible to the non-specialist his special interests of punctuated equilibrium, natural selection, and the relationship between form and function.
You will read "The Panda's Thumb":
The file is also available here: GouldPanda_1_.pdf
This link also works: https://faculty.washington.edu/lynnhank/Gould.pdf