Africa. It is the second largest continent in the world, as well as the second most populous. It is commonly regarded to be the location in which the human species originated. It is the only continent to stretch from the northern to southern temperate zones, making it home to a wide variety of life. Furthermore, it has the largest number of megafauna species in the world (megafauna being literally “large animals,” typically considered those weighing greater than 100 or 220 pounds). As such, it is home to some of the most iconic species alive today, including elephants, lions, giraffes, and gorillas.