SAN DIEGO (Nov. 30, 2023) – Scientists at San Diego Zoo Wildlife Alliance have achieved a major milestone in saving wildlife species: With a blue-eyed black lemur’s cells recently added to its Wildlife Biodiversity Bank’s Frozen Zoo®, the nonprofit conservation organization’s unique collection of genetic material now contains 11,00o individual cell lines from more than 1,250 species and subspecies—some critically endangered. No other biobank in the world has a comparable number of living cell lines, with the potential to reverse losses of genetic diversity and contribute to population sustainability for  endangered and threatened wildlife species.

Andean bear twins at the San Diego Zoo are a double dose of hope for this vulnerable species.

The second-ever Przewalski's horse clone has arrived to his new home at the Safari Park.

SAN DIEGO (July 7, 2023) – In the mid-morning hours of July 6, 2023, guests to the San Diego Zoo were treated to a rare and remarkable sight. Red panda Adira entered her outdoor habitat in the Zoo’s Asian Passage with someone new: her small and curious 1-month-old cub. This milestone was immensely significant, as the new cub is the first red panda born at the Zoo since 2006, and this marked the first time staff and guests were able to get a glimpse of the youngster outside its den.

SAN DIEGO (June 1, 2023) – The San Diego Zoo Safari Park is celebrating a conservation milestone with the birth of an endangered Matschie’s tree kangaroo—only the second time this species has been born at the Safari Park. The female joey, named Kikori, was born to mother Arona and father Bek, at the end of August 2022 at the Safari Park’s Walkabout Australia.

Take a closer look at how we're rebuilding sustainable populations of critically endangered wildlife in the Pacific.

SAN DIEGO (April 19, 2023) – Scientists are elated with the recent birth of the world’s second successfully cloned Przewalski’s horse, supporting the concept that cloning can be used as a viable tool for genetic rescue and contribute to new options for fostering resilience and genetic sustainability of endangered species. The foal, born Feb. 17, 2023 to a domestic surrogate mare, is a clone of a male Przewalski’s horse stallion whose living cell line was cryopreserved over 40 years ago in the San Diego Zoo Wildlife Alliance Biodiversity Bank’s Frozen Zoo^®.

SAN DIEGO (Sept. 27, 2022) – Kurt—the world’s first successfully cloned Przewalski’s horse—is thriving at his home at the San Diego Zoo Safari Park and learning the language of being a wild horse from Holly, a young female of his own species. Kurt and Holly’s pairing is a step in a long process to bring back lost genetic diversity to this endangered species.