Scientists from the Field Museum of Natural History in Chicago did a rapid inventory of species in Dureno in 2007 and estimated that Dureno's territory is home to 2,000 different species of vascular plants, 80 species of fish, 62 species of amphibians, 54 species of reptiles, 40 species of large mammals, and up to 420 species of birds. Why is this surprising, Chante?