The culmination of more than fifty years of research by the foremost living expert on plant classification, Diversity and Classification of Flowering Plants is
Picture a world of dog-sized scorpions and millipedes as long as a car; tropical rainforests with trees towering over 150 feet into the sky and a giant polar co
A paleontologist awakens us to the "extinction event" that human activity is bringing about today The natural world as humans have always known it evolved close