The Sequoia tree, the largest living thing on Earth, dwarfs humans and our ancient one-celled ancestors. Jane Wooldridge/Miami Herald/MCTFrom McClatchy News:
WASHINGTON — Twice in the Earth's history, living creatures underwent astonishing growth spurts, and each time, new organisms emerged that were a million times larger than anything that had existed before.
Scientists say that's the way life on our planet expanded from tiny single-celled microbes billions of years ago to the ponderous whales and lofty sequoia trees that are today's biggest living things.
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