Biologists cross-foster 16 Mexican gray wolf pups into wild dens

From Knau:

Arizona wildlife officials say they’ve introduced 16 captive-born endangered Mexican gray wolf pups to wild dens.

The process known as cross-fostering is meant to increase genetic diversity in the wolf population.

The newborn pups were placed within 14 days of being born and bred at four facilities across the U.S.

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