Baby animal photos
Gray wolf pups in Brookfield
Two pups from a litter born in late May emerge on June 30, 2015 from their den at Brookfield Zoo. The birth of the pups from the zoo's only two Mexican gray wolves is the first for this subspecies at Brookfield Zoo and may help support conservation efforts by increasing the genetic diversity. The U.S. Fish & Wildlife Service first listed the Mexican gray wolves on the Endangered Species List in 1976.