Variation, Selection, and Time
Scroll through the page below to get an idea of the immensity of geologic time.
Genetic Science Learning Center. (2013, July 1) Geologic Time. Retrieved April 11, 2018, from http://learn.genetics.utah.edu/content/selection/time/
Geologic Time [Internet]. Salt Lake City (UT): Genetic Science Learning Center; 2013 [cited 2018 Apr 11] Available from http://learn.genetics.utah.edu/content/selection/time/
Genetic Science Learning Center. "Geologic Time." Learn.Genetics. July 1, 2013. Accessed April 11, 2018. http://learn.genetics.utah.edu/content/selection/time/.