8 julio 2014
When a breeding wolf dies, its sex and the size of its pack can determine whether that pack continues, according to research. In 2012, biologists at Denali National Park and Preserve noted a drop in wolf sightings following the death of a breeding female from a pack that lived along the Denali Park Road.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oW0QaHMq24o/140708103107.htm
