Evolution photos

Evolution photos

Evolution photos

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Petrified wood in Arizona

Petrified wood in Arizona

Grafted walnuts in California

Grafted walnuts in California

Bridge over the San Andreas Fault

Bridge over the San Andreas Fault

Spanish moss on oaks in California

Spanish moss on oaks in California

Cakile maritima

Cakile maritima

Calycanthus occidentalis in California

Calycanthus occidentalis in California

High Sierra Trail

High Sierra Trail

Kaweah Lake at Dusk

Kaweah Lake at Dusk

Linanthus montanus in Sequoia National Park

Linanthus montanus in Sequoia National Park

Linanthus montanus

Linanthus montanus

Linanthus montanus in Sequoia National Park

Linanthus montanus in Sequoia National Park

A botanist and a giant sequoia

A botanist and a giant sequoia

Cornus nuttallii

Cornus nuttallii

Mt. Whitney from High Sierra trail

Mt. Whitney from High Sierra trail

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Petrified wood in Arizona

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Petrified wood in Arizona

Petrified wood at Petrified Forest National Park can be brightly colored with minerals. Photo 2012 by Stanley Rice.