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^®.

If you’re on the African savanna and near a particular type of tree, you’re listening to the duet of two species—one botanical and one arthropodan—working together in perfect harmony to survive.

SAN DIEGO (Feb. 8, 2023) – San Diego Zoo Wildlife Alliance today received a GUINNESS WORLD RECORDS^TM title for Oldest Living Mouse in Human Care recognizing “Pat,” a Pacific pocket mouse fondly named after actor Sir Patrick Stewart. Pat was born July 14, 2013 at the San Diego Zoo Safari Park, in the first year of the organization’s Pacific pocket mouse conservation breeding and reintroduction program. Today, he is 9 years and 209 days old. The GUINNESS WORLD RECORDS title is a win for all the tiny but mighty—and often overlooked—species around the world that play an important role in their ecosystems. 

Using data from eDNA techniques, scientists are exploring how to protect platypuses and their watery habitat.

The lush mangroves and flooded forests of Southeast Asia provide the perfect habitat for milky storks.

A large-scale study of 47 species of monkeys and lemurs has found that climate change and deforestation are driving these tree-dwelling animals to the ground, where they are at higher risk due to lack of preferred food and shelter, and may experience more negative interaction with humans and domestic animals.