Did he poop us out??

Overheard:

Chris is reading Bub a book about prehistoric times.  I think they are talking about evolution and I hear Chris explain that we all came from an ancient mammal. (Sorry, Creationists, it's true.)  And Bub asks,

Did he poop us out???

Hahahahaha!  You don't really need to hear Chris's explaination, do you?