3/4/2014

Two gray wolves at the Chicago Zoological Society's Brookfield Zoo have lent their genes to a preservation program. Cheryl Asa, a researcher with the Saint Louis Zoo's gray wolf survival program, collected semen from the wolves, who were anesthetized during the procedure, and will store the material to help ensure the species' genetic diversity. The species, once extinct in the wild, has been successfully reintroduced in some areas, but there are concerns for its chances of survival. "The challenges we face are really in the areas where they are being reintroduced and how well they are being accepted by the people who live there," Asa said.

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