High in the Canadian Rockies, stone preserves an ocean community about 508 million years old. Explore how the Burgess Shale captured soft-bodied animals, what Charles Doolittle Walcott collected there, and why fossils such as Opabinia, Hallucigenia, and Anomalocaris transformed our picture of Cambrian life. Inside this episode: - The 1909 discovery in Yoho National Park - How rapid burial preserved soft anatomy - The unfamiliar animals of the Cambrian ocean - What the fossils reveal about food webs and seafloors - Why scientific reconstructions continue to change Sources include Parks Canada records, Smithsonian National Museum of Natural History collections, Walcott field notes, and paleobiology research. This episode is a researched narrative summary. Historical records may be incomplete, translated differently, or interpreted differently by s ...