San Diego Zoo

The San Diego Zoo is a zoo in Balboa Park, San Diego, California, housing 4000 animals of more than 650 species and subspecies on 100 acres of Balboa Park leased from the City of San Diego. Its parent organization, San Diego Zoo Wildlife Alliance, is a private nonprofit conservation organization, and has one of the largest zoological membership associations in the world, with more than 250,000 member households and 130,000 child memberships, representing more than a half million people. The San Diego Zoo was a pioneer in the concept of open-air, cageless exhibits that recreate natural animal habitats. For decades, the zoo housed and successfully bred giant pandas, with the largest giant panda population outside China, before the pandas were repatriated to China in 2019. With more than 4 million visitors in 2018, San Diego Zoo is the most visited zoo in the United States. Travelers have also cited it as one of the best zoos in the world.

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In August 2020, the first cloned Przewalski’s horse was born using cryopreserved DNA — Now, a new foal has been born at San Diego Zoo, in ongoing work to save the critically endangered species (27 Jan. 2023)

California Condor Conservation Program Celebrating 40 Years at San Diego Zoo Safari Park

New research helping San Diego Zoo's effort to save the California condor — while the condors on the California coast are still struggling with DDT contamination, the new study reports that the birds in Baja Mexico, which live inland, have far fewer contaminants in their blood.

San Diego Zoo Wildlife Alliance study finds topography is key factor in where Andean bears mothers make their dens