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Q&A

Fatu, born in 2000, is one of the world’s last two surviving northern white rhinos. A 2013 photograph shows her hanging out with southern white rhinos at Kenya’s Pejeta Nature Conservancy.
Living World

At San Diego’s Frozen Zoo, a chance for animal immortality

The cryobank is a rich source of genetic knowledge of hundreds of creatures. It may one day be used to bring endangered species back from the brink and deepen the gene pool of wild populations.

Kernza, a trademarked perennial grain from intermediate wheatgrass (right), grows next to a field of annual wheat (left).
Food & Environment

Plant, reap, repeat — and now rethink

Replacing the annual farming cycle with perennial crops could be better for soil, water and wildlife

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