“Compared to forest or aquatic ecosystems, grassland is unstable. It requires rather precise geological and climatic conditions, and if these conditions are not maintained--if too much rain falls, or too little--it quickly turns into forest or desert, both of which… — David Rains Wallace Copy Share Image
“Compared to forest or aquatic ecosystems, grassland is unstable. It requires rather precise geological and climatic conditions, and if these conditions are not maintained--if… — David Rains Wallace Copy Share Image
“A flower's structure leads a bee toward having pollen adhere to its body . . . we don't know of any such reason why… — David Rains Wallace Copy Share Image
“Every time we exterminate a predator, we are in a sense creating a new predator.” — David Rains Wallace Copy Share Image
