It’s a common saying that elephants never forget. But the more we learn about elephants, the more it appears that their impressive memory is only one aspect of an incredible intelligence that makes them some of the most social, creative, and benevolent creatures on Earth.
Following 161 37 views About Export Add to Water is the miracle molecule, and mankind has used its perfect properties to revolutionize our lives. It was our first superhighway, the lifeblood of civilization, and gives us 90% of all the power we use today.
Since 1976, the Dead Sea's level has dropped more than 100 feet, leaving its coastline pockmarked with thousands of sinkholes. NOVA follows the unprecedented endeavor to connect the Red Sea to the Dead Sea by way of a massive desalination plant - perhaps the world's largest water chemistry experiment - as scientists race to save the Dead Sea and bring water to one of the driest regions on Earth.
Off Australia's northeast coast lies a wonder of the world, a living structure so big it can be seen from space, more intricate and complex than any city, and so diverse it hosts a third of all fish species in Australia. The Great Barrier Reef as we know it -- 8,000 years old and home to thousands of marine species -- is dying in our lifetime.