The world's largest living organism is the Great Barrier Reef. It is the world's largest coral reef, stretching over 2,000 km. It is a collection of many organisms, altogether forming one big superorganism. So, therefore the Great Barrier Reef is the world's largest living thing.
According to wikipedia, The largest living organism on the planet (earth) is THE ASPEN TREE.
Red wood trees in California .
The largest living organism in Australia is the Great Barrier Reef. It is a coral reef that is the biggest structure in the world to have been built by living creatures.
Blue whales.
The honey mushroom.
The great blue whale is the largest organism on the planet.
Great Barrier Reef
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Horse Isle is a video game created by Joe and Miranda Durbin that was released in 2007. The largest living organism in Horse Isle is the Shire.
A whole grove of aspens may be considered a single organism, as each tree shares the same roots as all the others.
The Great Barrier Reef.
The world's largest living organism is a fungus called Armillaria ostoyae. It is as big as 2,000 acres, so much more bigger than the blue whale.