The largest organism is the Armillaria ostoyae, also known as the "humongous fungus." The fungus covers 2,385 acres and is 8,650 years old, weighing 35,000 tons. Experts suggest that other ...

In the Wasatch Mountains of Utah, a remarkable organism known as Pando stands as the largest living organism on Earth by mass. This colossal stand of genetically identical quaking aspen trees ...

The outline of the giant fungus, strikingly similar to amushroom, stretches 3.5 miles across, and extends an average ofthree feet into the ground. It covers an area as big as 1,665football fields.