For now, the advance awaits industrial interest, Wall says. He notes that USDA did not patent the discovery, so it's available to anybody, yet ironically enough, the absence of a patent may have quelled industrial interest. A company that spent money bringing the advance on the market could not be sure of profiting from its investment. It may be unappealing, but it does seem to work. Wall observes that urine from 75,000 Canadian horses is currently supplying replacement estrogen that's used as a drug by menopausal women.
Worms invade science labs .