អូឌីយ៉ូ​ដែល​បាន​ចែករំលែក

Fact 3 The largest living structure on Earth isn’t a forest… or a giant tree. It’s the Great Barrier Reef in Australia. It stretches over 2,300 kilometers. And it’s so huge…astronauts can actually see it from space. That makes it the biggest living structure on our planet.