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.

The San Diego Zoo's 100 lush acres are blooming with a vibrant display of colorful flora.

See—and taste—the spirit of the season at the San Diego Zoo and Safari Park.

Local students are discovering the importance of collaboration and teamwork in wildlife conservation.

SAN DIEGO (Nov. 27, 2023) – For the third consecutive year, San Diego Zoo Wildlife Alliance will partner with the Tournament of Roses in Pasadena and participate in the 135th Rose Parade® presented by Honda on New Year’s Day. San Diego Zoo Wildlife Alliance’s parade float theme—“It Began with a Roar”—will feature a myriad of heartwarming stories from the San Diego Zoo that have inspired generations to care for and protect wildlife.

LOS ANGELES, SAN DIEGO, and PORTLAND, Ore. (Oct. 16, 2023) – The U.S. Fish & Wildlife Service (Service) is sharing early results from the historic vaccine trial for highly pathogenic avian influenza (HPAI) in California condors (Gymnogyps californianus). As reported by the Service’s Incident Command leading the effort, results from the first test group showed that 60% of the condors produced measurable antibodies that are expected to provide partial protection against mortality from HPAI if the birds are exposed. 

These resourceful insects turn fresh leaves into an edible fungus garden.

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.

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