Wolves communicate through howling and have different howls based on their location. They have an undeserved reputation from being hunted by humans. Wolves eat large prey like moose and medium prey like deer, and live in parts of Canada, Alaska, Europe and Asia. Wolf populations declined in the 1970s but can live 12-16 years in captivity or in the wild. Wolf packs typically consist of 5-11 animals including adults, juveniles and yearlings. Wolves are part of the biological family that includes dogs, foxes, jackals and coyotes. Male and female wolves differ in size, with males weighing 43-45kg and females 36-38.5kg.