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This is Scientific American 60-second science. I'm Annie Sneed.

It takes a big brain, a human brain, to do math.

Or so you might assume.

But scientists have found that other animals such as chimpanzees, monkeys, and even pigeons, can perform some addition and subtraction.

Now, new research shows that the honeybee, with a brain the size of a sesame seed, can perform basic math.

Researchers put honeybees through 100 trials to try to train them to add and subtract.

They put the bees in a Y-shaped maze and presented them with a certain number of either yellow or

blue shapes. Yellow indicated the bee should subtract while blue meant they should add. The

bee then entered the decision chamber where it was presented with a correct answer on one side

and an incorrect answer on the other side. If they picked the right answer, they were rewarded with the sugary solution.

If not, they got bitter tonic water.

The researchers also put the bees through another test trial, without a reward or punishment,

to make sure there weren't any scent marks influencing the bees' choices.

At first, the bees picked answers at random.

And you see that the ability of the bees to do it starts at about chance level, which is

50%, showing us that bees are just choosing randomly. But over time, their competence comes

up to about 80%, I think. So they actually start to perform quite well.

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