Researchers explore whether parrot has concept of zeroA bird seems to have hit on a concept that eluded mathematicians for centuries - possibly during a temper tantrum.June 22, 2005 Special to World Science Researchers are exploring whether a parrot has developed a numerical concept that eluded mathematicians for centuries: zero.Oddly, it seems he may have achieved the feat during a temper tantrum, the researchers say. Although zero is an obvious notion to most of us, it wasn't to people long ago. Scholars say it came into widespread use in the West only in the 1600s by way of India, which...