My favourite bit of this article is right at the end: "Pigeons repeatedly exposed to the problem show that they rapidly learn always to switch, unlike humans (

My favourite bit of this article is right at the end: "Pigeons repeatedly exposed to the problem show that they rapidly learn always to switch, unlike humans (Herbranson and Schroeder, 2010)." This just blows my mind and, as you might tell from my username, I'm a big fan of the bird that some denigrate as 'rats with wings'; I prefer to think of them as rat angels.