How does the San Diego Zoo use its Frozen Zoo to support endangered-species research and breeding?

The San Diego Zoo utilizes its "Frozen Zoo" as a critical resource for the conservation of endangered species. This facility maintains a repository of frozen tissue and genetic material collected from a wide variety of animals.1

These stored specimens serve two primary functions in support of conservation efforts:

• Research: Scientists use the genetic material to conduct studies that enhance our understanding of endangered species, which is essential for developing effective protection and management strategies.1
• Breeding: The genetic material is utilized to support breeding programs, helping to maintain genetic diversity and bolster the populations of species that are at risk of extinction.1

By preserving biological samples through cryopreservation, the San Diego Zoo ensures that vital genetic information remains available for future scientific analysis and reproductive interventions, playing a key role in the institution's broader commitment to wildlife conservation.12