“For thousands of generations we watched the stars as if our lives depended on it, because they did….[O]ur ancestors noticed that the motions of the stars across the nights of the year foretold changes on Earth that threatened or enhanced our chances for survival.”Tagged: Generations, Ancestors, Earth
“Few animals larger than a hundred pounds survived the catastrophes of the late Cretaceous. The dust cloud brought night and cold to the surface for months. The dinosaurs froze and starved to death. But there were small creatures who took shelter in the Earth. And when they emerged they found that…”Tagged: Cretaceous, Mammals, Earth
“Two-thirds of the Earth lies beneath more than 1,000 feet of water. It's a vast and largely unexplored frontier....This is the longest submarine mountain range in the world, the Atlantic Mid-Ocean Ridge. It wraps around our globe like the seam on a baseball. The past is another planet, but most of…”Tagged: Atlantic Mid-Ocean Ridge, Frontier, Earth, Ocean