Quote from Norm in The Spy Who Came In for a Cold One
Jack: Nah, for me, the smartest animal's a pigeon. A thousand cars on the turnpike, they find mine. Norm: No, I have to give my vote to the ants. Jack: How do you figure that? Norm: You ever see those farms they build? Jack: Yeah. Norm: Well, they build those things without plans. To ants. For all you do, this one's for you.