Archive
It’s a familiar story: flames rage through Southern California landscapes. Do these burns benefit ecosystems, or do they damage habitats and reduce biodiversity?
With the help from the San Diego Zoo's polar bears—and some amazing technology—we're learning a lot about the great ice bear.
United by purpose and fueled by passion, volunteers are helping us achieve our mission.
SAN DIEGO, PALM DESERT, Calif. (April 15, 2024) – Seventy critically endangered Mojave desert tortoises have successfully emerged from their winter burrows after being reintroduced into their native habitat on Edwards Air Force Base in Southern California. San Diego Zoo Wildlife Alliance and The Living Desert Zoo and Gardens, the global authority on desert plant and wildlife conservation, are working in partnership with Edwards Air Force Base, the U.S. Fish and Wildlife Service and the U.S. Geological Survey, using headstarting techniques designed to increase the survival rate for young tortoises. The cohort of young tortoises was the first in the program to be reintroduced into the wild after receiving a combination of an indoor- and outdoor-rearing. Within 24 hours of reentering their native habitat, the tortoises were exhibiting positive natural behaviors by constructing new burrows or modifying existing burrows for shelter. Now, six months later, they have emerged after winter brumation—a state of deep sleep specific to reptiles—and are spending more time basking at burrow entrances. Scientists are currently conducting health assessments and replacing radio transmitters on the tortoises to continue monitoring their success and better understand the juvenile age class.
SAN DIEGO (Jan. 9, 2024) – To apply cutting-edge technology to the conservation of koalas, San Diego Wildlife Alliance is partnering with Illumina, a leading genomic sequencing technology company, through the Illumina iConserve program to sequence the whole genomes (an individual’s complete set of DNA) of nearly 100 koalas residing in North America over the past 30 years. Whole genome sequencing is integral to learning more about Koala Retrovirus, KoRV – a virus that can insert into the koala genome and is associated with various health issues in koalas including immunosuppression and cancer.
Local students are discovering the importance of collaboration and teamwork in wildlife conservation.
SAN DIEGO (Nov. 14, 2023) – San Diego Zoo Wildlife Alliance, in collaboration with Omaha’s Henry Doorly Zoo and Aquarium, reintroduced more than 70 endangered mountain yellow-legged frogs into a lake located in the San Bernardino Mountains. This release marks the first time the Southern California distinct population segment of the mountain yellow-legged frog has been reintroduced into a lake instead of a mountain stream. The frogs were bred at San Diego Zoo Wildlife Alliance’s Beckman Center for Conservation Research between 2020 and 2022, and then reared at Omaha’s Henry Doorly Zoo and Aquarium. The cross-country effort to save this California frog is part of a robust conservation breeding and reintroduction research program aimed at restoring populations of this declining species throughout its historic range.
SAN DIEGO (Sept. 7, 2023) – The world’s second successfully cloned Przewalski’s horse is thriving at his home at the San Diego Zoo Safari Park. The foal, born Feb. 17, 2023, and his surrogate mother, a domestic quarter horse, were recently moved from his birthplace at ViaGen Pets & Equine cloning facility in Texas so he can learn the language of being a wild horse from his own species.
SAN DIEGO (June 6, 2023) – Researchers are currently tracking over 40 wild ‘io, also known as Hawaiian hawks, on Hawai‘i Island with lightweight, solar-powered GPS transmitters. This work is part of a collaborative effort to conserve this beloved species and one of its natural prey—the ‘alalā. Researchers with San Diego Zoo Wildlife Alliance and the State of Hawai‘i Department of Land and Natural Resources – Division of Forestry and Wildlife are collaborating on this effort as part of a large-scale GPS tracking program to better understand the extent to which ‘io move across the island and how they utilize different habitats. With the new insights that are gathered, scientists will be better equipped to conserve this iconic raptor, and simultaneously glean critical insights to aid in the future reintroduction of the ‘alalā, also called the Hawaiian crow, to their native habitats. The aim is to ensure that both ‘alalā and ‘io can coexist in their native habitats, as they previously did for many years.
Translocating 21 eastern black rhinoceroses in Kenya is no small feat, but it's a vital step on the road to recovery for this critically endangered species.