Scientists have grown a tree from what may be the oldest seed ever germinated. The new sapling was sprouted from a 2,000-year-old date palm excavated in Masada, the site of a cliff-side fortress in Israel where ancient Jews are said to have killed themselves to avoid capture by Roman invaders. Dubbed the "Methuselah Tree" after the oldest person in the Bible, the new plant has been growing steadily, and after 26 months, the tree was nearly four feet (1.2 meters) tall.