Bees get a buzz out of numbers
They may have a brain the size of a pinhead, but researchers have discovered honey bees have mastered basic maths. Australian scientists found they understood the concept of zero, putting them on a par with chimps, parrots and three-year-old children. In tests using sugary treats, the bees learnt to fly to a blank sheet of paper, compared to one with one to six shapes. They knew the empty sheet meant no shapes.