National Geographic(@NatGeo ):Renowned botanist and Nat Geo Explorer Peter Raven, who turned a minor botanical garden in the U.S. heartland into an international research and conservation powerhouse, has died at 89 years old. Learn about his influence and impact: https://t.co/GXYzTxilSJ

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National Geographic@NatGeo

2026.04.29 00:00

Renowned botanist and Nat Geo Explorer Peter Raven, who turned a minor botanical garden in the U.S. heartland into an international research and conservation powerhouse, has died at 89 years old. Learn about his influence and impact: https://t.co/GXYzTxilSJ https://t.co/IFYpBJfZcl