Rhino in San Diego pregnant, could help save subspecies

A southern white rhino has become pregnant through artificial insemination at the San Diego Zoo Safari Park—giving hope for efforts to save a subspecies of one of the world's most recognizable animals, researchers announced ...

Molecule increases pregnancy rate and number of offspring in cattle

Researchers at Inprenha Biotecnologia, a company based in Jaboticabal, São Paulo State, Brazil, working in partnership with colleagues at the University of São Paulo's Ribeirão Preto School of Pharmaceutical Sciences (FCFRP-USP), ...

Japan hatches penguin chicks using artificial insemination

A Japanese aquarium said Wednesday it had hatched two Humboldt penguin chicks after using artificial insemination, the first time the technique has been successfully deployed for the vulnerable species.

Survival for some endangered species hinges on 'Frozen Zoo'

Whenever an endangered animal dies at the San Diego Zoo, researchers race out, regardless of the hour, to remove its sperm or eggs, maybe a bit of ear or eyeball, and carefully freeze the cells in liquid nitrogen.

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