Math for chicks!

So chicks can do arithmetic after all, eh?

Solo chicks typically rush over to join the largest group of their companions in the neighborhood.

Not only that, but ...

For the toughest set of tests, each chick watched as a researcher first hid objects behind each of two screens. Then the tester let the chick see some of the objects being moved from behind one screen to the other. To go to the screen with the larger number, the chick had to keep track of addition and subtraction.

About 75 percent of the time, chicks did it right.

Not bad for a chick!