Here's a hint: It's probably not what you think! A honey fungus measuring 2.4 miles (3.8 km) across in the Blue Mountains in Oregon is thought to be the largest living organism on Earth. And I thought my ego was big. You could make one heck of a big bowl of mushroom soup with this guy!
What is the largest living organism on earth?
Hey while you're here, have you seen my new World Map Coloring Poster?