Encyclopedia Article


Movement from one place to another. In the natural world, groups of animals, including humans, migrate together, undertaking often difficult journeys due to seasonal changes, or because of encroaching habitat loss, the loss of natural resources necessary for survival, or other forms of duress. A migration pattern can evolve over time, where the migration route takes on a circular or cyclical form that is followed year after year.

Photo Credit: 

"Monarch butterfly migration, El Rosario Sanctuary, Michoacàn-Mèxico, March 3, 2012" by Luna sin estrellas is licensed under CC BY.