The Largest Living Thing on Earth is a Fungus that Covers 2,200 Acres
We already covered the oldest living organism on earth. The largest living organism on Earth is not a giant tree or an enormous animal – but a fungus. In eastern Oregon’s Malheur National Forest, there exists a massive fungal network known as Armillaria ostoyae. This organism covers more than 2,200 acres and is estimated to be thousands of years old. It primarily consists of an underground network of mycelium, the vegetative part of a fungus. While the individual mushrooms that pop up may seem separate, they are all interconnected by this vast underground network, making it the largest living organism known to science.