I don't it at all.
EDIT: This is what she said.
The lack of people who actually understand the joke astounds me.
For those who do: Congratulations. You're probably atleast nineteen, are aware of Darwinism, Creationism, and other words ending in 'ism', or have read the recent articles that have been in many of the circulating neswpapers. I'm not going to explain the joke because I'm lazy and I don't want to, so feel special about yourself; you understand a political cartoon.
Everyone else: Go to college.