For 50 years, the San Diego Zoo Wildlife Alliance has been preserving animals' genetic material in its Frozen Zoo, and ...

For the first time, a plant specimen has been cryopreserved and placed into the San Diego Zoo Wildlife Alliance’s Frozen Zoo, a step scientists believe could help the endangered scrub oak species ...

When the top spotty fish in a tank disappears, the runner-up turns aggressive within minutes, rushing and nipping rivals ...