Frozen Zoo new Jurassic Park?

Barbara Durant, director of reproductive physiology at the San Diego Zoo Institute for Conservation Research, a.k.a. the Frozen Zoo, submerges a tray holding vials of cells into liquid nitrogen. 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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