1.Hendricks S, Schweizer R, Harrigan R, Pollinger J, Paquet P, Darimont C, Adams J, Waits L, vonHoldt B, Hohenlohe P, Wayne R. Natural re-colonization and admixture of wolves (Canis lupus) in the US Pacific Northwest: challenges for the protection and management of rare and endangered taxa. Heredity (Edinb). 2019;122(2):133–149. PMCID: PMC6327037 Reference Link