One of the male pups would become the 100th captive-born pup fostered into the wild, a significant milestone in Mexican gray wolf recovery. “Genetics is a concern for the program because every ...

The number of endangered Mexican gray wolves has increased for the ninth year in a row, but advocates say recovery isn't occurring fast enough.

Among other wolf deaths in 2021, the Cerro Trigo pack in Arizona first lost a pup and later both adults; the pack no longer exists. No causes of death have been reported, but most known mortalities ...