Authorities and conservation groups are seeking information on three recent gray wolf killings in Washington, offering up to $20,000 for tips leading to arrests. Why it matters: Gray wolves are listed as endangered by the state and under the federal Endangered Species Act.

Animal rights groups to offer a massive reward for information leading to the arrest and conviction in the killing a recently released wolf in Colorado.

Conservation advocates and a federal wildlife agency are offering $20,000 for information on each of three recent wolf poaching incidents in Washington. Since October, three gray wolves have been illegally killed in Klickitat and Okanogan counties.