Migration (ecology) - Wikipedia
https://en.wikipedia.org/wiki/Migration_(ecology)
OverviewMechanismsFactorsTaxonomic distributionEffectsSee alsoMigration, in ecology, is the large-scale movement of members of a species to a different environment. Migration is a natural behavior and component of the life cycle of many species of mobile organisms, not limited to animals, though animal migration is the best known type. Migration is often cyclical, frequently occurring on a seasonal basis, and in some cases on a daily basis. Species migrate to take advantage of more favorable conditions with respect to food availability, …
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