But on Tuesday at 10 a.m., they could be seen in a media preview at the San Francisco Zoo and Gardens. Forty years ago, the species was listed as extinct in the wild. Thanks to coordinated captive ...

the hippo moved to Houston from San Francisco as part of a breeding recommendation from the Association of Zoos and Aquarium ...

Last week, the Houston Zoo announced that it had welcomed a 4.5-year-old, 477-pound male pygmy hippo from San Francisco. Named Akobi, the youngster was transferred based on a breeding ...

San Francisco Zoo announced Maggie, its beloved chimpanzee, died at age 55 after being diagnosed with lymphoma. The zoo said she was under palliative care for the past few months. Beloved San ...