Uploaded August 2026 | Updated September 2026, 2 weeks ago

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The iNaturalist cellphone app not only helps users identify plant, animal and insect species; it also provides invaluable data to scientists studying biodiversity, species decline, and habitat loss. It also provides opportunities for fun: David Pogue joins iNaturalist fan Martha Stewart in a "bioblitz" – a timed competition with other users to spot and ID species. (Originally broadcast March 22, 2026.)

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