Arctic wolves in Minnesota adjusting to new pack

In this March 13, 2018 photo, Axel, an arctic wolf pup, appears at the the International Wolf Center in Ely Minn. Curators of the Minnesota wolf center say that Axel and another arctic wolf pup Grayson, who arrived in 2016, have reached their challenging years and have been testing behavioral limits this winter.
Mark Sauer/AP
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