Evolution photos

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Shumard oak buds

Sweetgum flowers

Seaside alders and Blue River, Oklahoma

Sweetgum bud

Cephalanthus flowers

Sugar maples in Oklahoma

Crinoid fossils in Oklahoma

Bottomland flooded forest in Oklahoma

Oenothera rhombipetala in Oklahoma

Bristlecone pine wood layers

Ancient bristlecone pines

Darwin and Mt. Darwin

Darwin in Darwin

Fremontia in the Sierra Nevada

Mt. Whitney from the east

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Ancient bristlecone pines

The oldest Pinus longeava at the Ancient Bristlecone Pine Preserve in California are not the biggest, but the ones that look almost dead. 2012 photo by Stanley Rice.