“Until now, none of the breeding pairs have been successful,” the release says. “Luna’s successful pregnancy is notable because she has very valuable and underrepresented genetics that the SSP was eager to have carried on in the captive population. When they are older, it is possible that Luna’s pups could be released to the wild to help provide genetic diversity in the wild, as well.”The pups’ father is Navarro, who came to Cheyenne Mountain Zoo last November. His genetics also are considered valuable, the release says.”We knew there was possibility that Luna, our 10-year-old female, was pregnant, but it is also fairly common for wolves to experience pseudo pregnancies,” Dina Bredahl, animal care manager for Rocky Mountain Wild, said in the release. “Pseudo pregnancies exhibit the same behavioral and physical changes in the mother, so we were cautiously optimistic that this was an actual pregnancy. The keepers and I are thrilled that she has given us pups!”

Source: Litter of endangered Mexican gray wolf pups born at Cheyenne Mountain Zoo | gazette.com