Baldo by Hector D. Cantú and Carlos Castellanos for April 17, 2013
April 16, 2013
April 18, 2013
Transcript:
Baldo: Okay, you got this! Baldo: Who introduced the theory of punctuated equilibrium? Gracie: Gould and Eldredge! Baldo: Goal!
Punctuated equilibrium is a refinement of Darwin’s idea that species change slowly over time to became news species. Gould said that species tended to stay about the same for long periods until something forces a sudden change in the population, such as sudden climate change, epidemics, or new predators. My suspicion is that Darwin understood this perfectly well but kept things simple because of all the resistance he knew he was going to get for his whole concept of evolution through natural selection. (This is for you, emjaycee.)