Hold your pinky nail out in front of you. Now divide your nail into quarters. This is the size of one of the most remarkable animals in the world — the coral polyp. The life of this tiny creature represents a biological process that helps produce geological fact in the form of coral reefs. These minute organisms are the building blocks of The Great Barrier Reef, which at 1,400 miles long is the largest living structure on Earth — visible even from space.
from CNN.com – RSS Channel – HP Hero
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