“Evolution isn't just a story about where we came from. It's an epic at the center of life itself.”– Kenneth R. Miller, Biologist, Brown University If you are reading this sentence, you’re ...

Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes ...

Science 270, 53-59 (1995). deMenocal, P. B. African climate change and faunal evolution during the Pliocene-Pleistocene. Earth and Planetary Science Letters 220, 3-24 (2004). Johnson, T.