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.
The government paid hunters to kill wolves because they feared that wolves would try to take livestock. Today wolves are found in Alaska, Canada, and the northern parts of Minnesota, Idaho, Washington, Montana, and Wisconsin. Since wolf populations are so small, they are listed as endangered in most states. The wolves in Minnesota are only threatened meaning they are not in immediate danger of becoming extinct.