The fauna of the Americas is rich and varied. Due to the huge size of this landmass, as well as the many landscapes found here, animals have adapted to suit every environment from the Artic to the Andes and the Amazon to Patagonia. Tropical rainforests are the richest ecosystems for flora and fauna on Earth. The Amazon for example has more species than Africa and Asia with ten percent of species in the world living there. Included is a wide array of birds and monkeys, and notable species such as Jaguar and Tapirs. In North America, the fauna is less rich. Animals such as caribou, wolves, deer, skunks, bears, porcupines, coyotes and other dog species live in a wide range of habitats within the Arctic, northern and eastern forests, praires, and deserts.