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.
Hunting and habitat destruction have caused a steep decline in populations. Gray wolves are now found only in a few areas of Canada and the United States. Wild wolves live in these states: Alaska, Idaho, Michigan, Minnesota, Montana, Wisconsin and Wyoming.olves often hunt in packs for large prey such as deer, moose, sheep, goats, caribou, elk, bison, and muskox. Wolves also prey on rodents, beavers, fish, and birds. Behavior: Gray wolves are territorial and live in packs lead by the alpha pair.