-- There may be an unexpected fix for ongoing shortages of insulin: A brown bovine in Brazil recently made history as the first transgenic cow able to produce human insulin in her milk.

"Mother Nature designed the mammary gland as a factory to make protein really, really efficiently," explained study leader Matt Wheeler, a professor of animal sciences at the University of Illinois Urbana-Champaign. "We can take advantage of that system to produce a protein that can help hundreds of millions of people worldwide."