Moderna and Merck & Co. have developed a cancer vaccine that cuts the risk of death or recurrence of most deadly skin cancer by 44 percent compared to Merck's Keytruda on its own, according to researchers.
Wildlife officials plan to release gray wolves in Colorado in coming weeks, at the behest of urban voters and to the dismay of rural residents who don't want the predators but have waning influence in the Democratic-led state.
