Our ancestor’s migration across the planet was driven primarily by food and climate. Some nomadic tribes passage followed the herd animals they hunted (and continue to do so today.) Technology, such as the discovery of fire, meat preservation and agriculture also played a part in allowing humans to settle in less-than-ideal conditions. Consequently, no species has spread across the earth to the same degree as humans.
Today, there is still a factor of wanderlust spurring backpackers around the globe. However, not everyone wants to wander through the streets of Mumbai, or scale the forests of Ecuador, or the glaciers of …read more