Read more here:Endangered Mexican Wolves Debut at SF Zoo
By Lisa Marie Potter, JUNE 8, 2016
KQED SCIENCE
The pack is part of a captive breeding program to contribute to the genetic diversity—and therefore the survival—of wolf populations that have been reintroduced to their historical ranges in the southwestern U.S. and central Mexico.
http://ww2.kqed.org/science/2016/06/08/ ... at-sf-zoo/