# 200 km across the Atacama: Ray Zahab on survival, heat, and the edge of human limits Page: https://stenobird.com/podcast/explore-a-canadian-geographic-podcast-243723/200-km-across-the-atacama-ray-zahab-on-survival-heat-and-the-edge-of-human-limits Text version: https://stenobird.com/podcast/explore-a-canadian-geographic-podcast-243723/200-km-across-the-atacama-ray-zahab-on-survival-heat-and-the-edge-of-human-limits.md Podcast: [Explore: A Canadian Geographic podcast](https://stenobird.com/podcast/explore-a-canadian-geographic-podcast-243723) Published: 2026-03-24T16:14:53+00:00 Episode link: https://podcast.show/%PODPAGE_SLUG%/episode/153757007/ Audio file: https://media.blubrry.com/1459923/ins.blubrry.com/1459923/Explore_Ep_123_Ray_Zahab_Atacama.mp3 Processing state: not_requested JSON: https://stenobird.com/v1/public/podcasts/explore-a-canadian-geographic-podcast-243723/episodes/200-km-across-the-atacama-ray-zahab-on-survival-heat-and-the-edge-of-human-limits Duration seconds: 3042 ## Resource Running a marathon a day in extreme heat, the ultra-endurance athlete’s latest expedition shows what resilience looks like and what humans are capable of ## Actions - request_transcript: `POST https://stenobird.com/v1/public/podcasts/explore-a-canadian-geographic-podcast-243723/episodes/200-km-across-the-atacama-ray-zahab-on-survival-heat-and-the-edge-of-human-limits/transcription-requests` — Idempotently request low-priority transcript generation for this episode. - read_markdown: `GET https://stenobird.com/podcast/explore-a-canadian-geographic-podcast-243723/200-km-across-the-atacama-ray-zahab-on-survival-heat-and-the-edge-of-human-limits.md` — Read the agent-friendly Markdown representation of this episode resource. A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed. ## Transcript Full transcripts are not published on public pages unless there is a clear rights basis.