1. (Pharmacology) a drug, agent, or nerve that can cause dilatation (vasodilatation) of the walls of blood vessels. 2. (Physiology) a drug, agent, or nerve that can cause dilatation (vasodilatation) of the walls of blood vessels.
As part of their proposal to âreintroduceâ 750 Mexican wolves, these scientists want to have a self-sustaining population of 250 wolves in southern Utah and northern Arizona â places that fall well outside the predatorsâ historic range.
But it is unclear how much tolerance some local residents have for wolves, especially in the northern Rockies and the Southwest. Wolves have made gains in Michigan, Minnesota and Wisconsin without sparking much controversy. There are more than 4,000 in those states, with an estimated 2,921 in Minnesota alone.