Depending on your definition, the Earth features many "biggest" living things. Today we're looking at where they stack up ...

Have you ever wondered what the largest living organism on Earth is? Well, you might be surprised to learn that it's not a giant blue whale or a sequoia tree; it's a fungus!

A collection of over 40,000 trees in rural Utah is the world’s largest single organism, having all descended from a single ...

The largest living thing on the planet is not a whale or any other animal you might expect. It is a giant fungus that kills anything in its path, currently taking up more than three square miles ...

Pando, a quaking aspen in Utah, is between 16,000 and 81,000 years old. New threats mean the world's largest tree is now in ...

Pando is a giant aspen clone in central Utah that has been regrowing parts of itself for up to 80,000 years — but new threats mean the plant is now in decline. When you purchase through links on ...

We investigated the bristlecone pine tree after William Adams from London asked us: "What's the oldest tree or other living organism on Earth?" If you've got a science question you want BBC ...

Make the trek into south-central Utah's Fishlake National Forest and you'll discover what's considered the largest organism on Earth: the Pando tree. At first glance, Pando looks like any other ...

Pando is the world's largest tree. Its name means "I spread" in Latin, and it does indeed spread: The organism has given rise ...