GMO stands for genetically modified organism. GMOs are living organisms that have had their genetic code modified in some way. It's important to note that plant and animal genetics have been modified since the dawn of agriculture. Selective breeding, cross pollination, and hybridization are common methods farmers have used to improve their products. GMOs are different in that scientists have picked out a desired trait from one living thing, copied that trait and placed it into another living thing. Most genetically modified crops have had their genes altered to make the plant more resistant to pests and disease; to be able to withstand herbicides; to increase drought tolerance; or to improve nutritional value. You'll also see GMO technology referred to as gene-splicing, bioengineering, or genetic engineering. Click Here for more information on the history and science of GMOs.