Organism

In Utah, a forest that looks like many trees is actually one giant aspen clone. Called Pando, its 47,000 stems share one underground root system. It covers 43 hectares and may weigh 6,000 tons, making it a candidate for Earth’s heaviest organism.

The largest living organism on Earth is a mushroom. In Oregon, USA, a single honey fungus in Malheur National Forest spans an area larger than 1,000 football fields.