We humans have a basic instinct to move wherever “there are greener pastures.” My thesis back at college about migration depicted it so. Human beings move from scarce to bountiful. Rural to urban, less money to earning more money, these are dictated by our instinct to survive and live. Now, think about the animal kingdom—ever wonder why whales migrate, butterflies flutter to Mexico, to moving red crabs carpeting the forest floors of Christmas Island, and wildebeest went on the madness to swim with the crocs—survival. It is Darwinian at its finest.

Continue reading NatGeo’s Great Migrations: Move as Millions, Survive as One