Stinging Trees and Wait-a-WhilesThe last traces of Australia's tropical rainforest, where the southeasterly winds bring rain to the coastal mountains, contain a unique assemblage of plants and animals, some primitive, many that are found nowhere else on earth. And fifteen years ago, they also contained Bill Laurance, a budding ecologist seduced by the nature of the landscape in north Queensland. Laurance isn't your typical scientist: he wears cut offs instead of white coats, enjoys