The first were probable immigrants from Minnesota. The state's wolf population ranged between 15 and 40, minimum, in that time span. The goal of the wolf recovery program was to achieve a population of 80 wolves. Data from the survey is expected to be announced within weeks. Experts say parvo virus and mange are the two diseases which might limit the growth of wolf numbers.
Wolves are pack animals but only the dominant, or alpha, male and female breed.
Biders wait their time within the pack hierarchy waiting for their opportunity to assume dominance. Others may disperse looking for their own territory or a mate. The life expectancy of a wolf in Wisconsin is 8 years. Pack size here ranges between four and eight animals. Each pack has its own territory, which is actively defended.