Here’s an article on an odd experiment that suggests that chimps can differentiate between the volume of liquid poured into a cup and, for the most part, accurately select the cup that holds more tasty fruit juice than the other cup does. Fine, but . . . where do they come up with these experiments, anyway?
I think chimps are probably much smarter than most people realize. Indeed, the chimps in this experiment probably were wondering what generalized weirdness the guy in the white lab coat was up to this time.
Chimp No. 1: “He’s at it again.”
Chimp No. 2: What is it now? Another test involving banana-flavored pellets?”
Chimp No. 1: “No, it appears to be an experiment designed to determine if we can distinguish between the volume of liquid contained in opaque containers.”
Chimp No. 2: “Do we get fruit juice out of it?”
Chimp No. 1: “Apparently, yes.”
Chimp No. 2: “Who cares, then? Let’s humor the guy.”