SAN DIEGO (July 27, 2023) – San Diego Zoo Wildlife Alliance is celebrating the birth of two Sumatran tiger cubs—the first of this critically endangered species to be born at the San Diego Zoo Safari Park’s Tull Family Tiger Trail habitat in seven years. Their birth also comes just in time for Global Tiger Day. With only an estimated 400 to 600 Sumatran tigers remaining on Earth, the births are significant in increasing the worldwide population of this tiger species and furthering the nonprofit conservation organization’s ongoing work to conserve them.

SAN DIEGO (July 13, 2023) – After more than two years of dedicated work, San Diego Zoo Wildlife Alliance conservationists are achieving success breeding a critically endangered coastal bird: the milky stork. This breeding program is part of an 11th-hour effort with the Association of Zoos and Aquariums Taxon Advisory Group (AZA TAG) to assist the last remaining individuals of the species living in North America—helping them successfully reproduce, and bolster the world’s population of milky storks. 

It takes an innovative, comprehensive approach to bolster Hawaiian bird populations and ensure their future.

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

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.

SAN DIEGO (March 28, 2023) – A birth of twins is exceptional, no matter the species. However, when those twins are Amur leopards—and fewer than 300 of those big cats are estimated to exist on Earth—the births are especially significant. This week, wildlife care staff at the San Diego Zoo announced the birth of two Amur leopard cubs, increasing this rare cat’s estimated worldwide population by two and furthering the nonprofit conservation organization’s ongoing work to save this vital Asian species.   

SAN DIEGO (Jan. 27, 2023) – Conservationists at the nonprofit San Diego Zoo Wildlife Alliance have announced the birth of a Przewalski’s horse —a critically endangered species of wild horse that was categorized as Extinct in the Wild until 1996. The foal is the first Przewalski’s horse born at the San Diego Zoo Safari Park since 2014, and is one of only four individuals born in North America over the past year.

One of the world's oldest and rarest trees, the Wollemi pine was once believed to be extinct.