{"podcast":{"title":"EarthDate","slug":"earthdate-7713094","podcast_index_feed_id":7713094,"rss_url":"https://feeds.blubrry.com/feeds/3957418.xml","website_url":"http://blubrry.com/3957418/","image_url":"https://assets.blubrry.com/coverart/1400/3957418-201603.jpg","author":"Switch Energy Alliance","episode_count":300,"summary":"EarthDate is a short-format weekly audio program delivering concise, science-based stories about the Earth: its geology, environments, and the processes that shape our planet over deep time and today. Beginning in 2026, EarthDate is managed by Switch Energy Alliance and hosted by SEA's founder Dr. Scott W. Tinker. Together, we explore earth systems, natural resources, and their relevance to everyday life, with a focus on clear, accessible science education for broad audiences. EarthDate is written and directed by Emmy-winning filmmaker Harry Lynch, and researched by Lynn Kistler. We search for captivating stories to remind listeners that science can enlighten, educate and entertain.","last_synced_at":null,"page_url":"https://stenobird.com/podcast/earthdate-7713094"},"episode":{"title":"Civilized Ants","slug":"civilized-ants","published_at":"2026-05-14T14:00:00+00:00","page_url":"https://stenobird.com/podcast/earthdate-7713094/civilized-ants","show_page_url":"https://stenobird.com/podcast/earthdate-7713094","url":"https://blubrry.com/3957418/153852833/civilized-ants/","audio_url":"https://media.blubrry.com/3957418/content.blubrry.com/3957418/EarthDate_S14_E09.mp3","summary":"There are only four creatures on Earth that tend crops: humans, weevils, termites and, most successfully of all, ants. Around 10,000 years ago, humans switched from being nomadic hunter-gatherers to sedentary farmers. The food surplus allowed us to develop civilization. But ants beat us to it, becoming “civilized” 60 million years before then. Scientists think it may have been after the Chicxulub asteroid, when darkened skies meant fewer plants, that ants began to rely on fungus. Soon after, leaf cutter ants began to grow their own fungus, gathering organic material and bringing it into their nests to feed their crops. And soon after that, they became codependent. Leaf cutters could only eat their specially grown fungus. And the fungus could only survive when dutifully tended by the ants. To accomplish this, the ant colony evolved into classes. Large foragers cut and gather the leaves. Smaller gardeners chew them into the mash that feeds the fungus. Still smaller ants tend the fungus and spread natural antibiotics, from pits on their exoskeletons, to control parasitic bacteria that live on the fungus. Thriving this way, a single colony can contain millions of ants, tending hundreds of chambers, dozens of feet deep into the ground. Lessons in cooperation that perhaps our human communities could learn from. Though very few of us would want to live on fungus alone.","meta_description":"There are only four creatures on Earth that tend crops: humans, weevils, termites and, most successfully of all, ants. Around 10,000 years ago, humans swi…","key_points":[],"chapters":[],"topics":[],"duration_seconds":120,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/earthdate-7713094/episodes/civilized-ants/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/earthdate-7713094/civilized-ants.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}