In the last 2 million years the green belt around the earth's middle has alternately shrunk and expanded as the ice ages have come and gone. For millennia now the Rain Forests have stretched almost unbroken across the land surfaces on either side of the equator extending North to the tropic of Cancer and South to the Tropic of Capricorn. Today however satellite photographs show the belt in tatters. It's heartland burnt, cut into blocks and patches. This time the villain in Eden isn't the snake human pressures are putting tropical paradise in jeopardy.
Invertebrates constitute the majority of the animal kingdom.