Adaptive humor Dear Calvin, The correct answer may be genetic drift, unless you can reject the null hypothesis. Yours truly, Josh Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Like this:Like Loading... Related Author: Josh Witten http://www.thefinchandpea.com View all posts by Josh Witten