Descending into a Lava Tube Cave

Photo: Anne Wiley
June 13, 2016
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Lava Tube Cave with explorer
Photo: Anne Wiley

Smithsonian scientist Helen James descends into a lava tube cave on Maui in search of fossil bird bones. Hawaiian petrels apparently died in this very cave. Their remains provide clues about the lives and diet of seabirds in the Pacific Ocean, before and after human fishing began.