MASS EXTINCTION UNDERWAY The World Wide Web's Most Comprehensive Source of Information on the Current Mass Extinction The Current Mass Extinction: Human beings are currently causing the greatest mass extinction of species since the extinction of the dinosaurs 65 million years ago. If present trends continue one half of all species on earth will be extinct in 100 years. (For details see links ...

Synopsis.

Prof. Stephen A. Nelson Geology 204 Tulane University Natural Disasters Meteorites, Impacts, and Mass Extinction Meteorites A Meteorite is a piece of rock from outer space that strikes the surface of the Earth. A Meteoroid is a meteorite before it hits the surface of the Earth. Meteors are glowing fragments of rock matter from outside the Earth's atmosphere that burn and glow upon entering the ...

SITE INDEX RETURN TO HIGHLIGHTS The Sixth Extinction Text by Virginia Morell Photographs by Frans Lanting The first orange rays of the sun are just beginning to touch the saw grass prairie of Everglades National Park in Florida when our helicopter pilot lifts off from a small airport nearby. He turns low over the park, skimming above the gray-green grasses and morning mist. Here and there small ...