giant honey mushroom Largest Living Thing | Mushroom in Oregon miles of fibrous strands Largest Living Thing | Mushroom in Oregon Humongous Fungus. The largest living organism on the planet giant mushroom the one covers http://www.extremescience.com/biggest-living-thing.htm Largest Living Thing | Mushroom in Oregon giant honey mushroom world's largest organism world's largest organism Extreme Science http://www.extremescience.com/biggest-living-thing.htm Largest Living Organism: Fungus http://www.extremescience.com/biggest-living-thing.htm Humongous Fungus. Extreme Science Humongous Fungus.