1. Largest Organism on Earth

2. A team of scientists measures a giant sequoia in California's Sequoia National Park

3. Cloaked in the snows of California’s Sierra Nevada, the 3,200-year-old giant sequoia called the President rises 247 feet. Two other sequoias have wider trunks, but none has a larger crown, say the scientists who climbed it. The figure at top seems taller than the other climbers because he’s standing forward on one of the great limbs. By climbing and measuring the tree, they calculated that the 247-foot-tall (75-meter- tall) giant holds more than 54,000 cubic feet (1,500 cubic meters) of wood and bark, earning it the ranking of second largest tree on Earth, as reported in National Geographic http://ngm.nationalgeographic.com/2012/12 /sequoias/behind-the-scenes-video http://ngm.nationalgeographic.com/2012/12 /sequoias/behind-the-scenes-video