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Animal migration (view source)

Revision as of 01:04, March 5, 2008

597 bytes removed ,  01:04, March 5, 2008
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'''Migration''' is the movement of people or animals (particularly [[bird]]s) to live in another place.
 
'''Migration''' is the movement of people or animals (particularly [[bird]]s) to live in another place.
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With animals, migration is usually a periodic movement to better climate or feeding areas.  It is typically repeated in a similar manner each year.
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== Humans ==
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Migration is typically done by individuals, families, or extended families goint to live in another [[country]], but there have been many periods of mass migration, where large numbers of people move to another country.
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This is often instigated by oppressive regimes or [[natural disaster]]s, such as [[drought]].
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== Animals ==
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Animal migration presents an obvious puzzle:  how do the creatures find their way to their destination?
      
Each year, a few towns in [[California]] are greeted by the arrival of tens of thousands of [[monarch butterfly|monarch butterflies]].  [[Pacific Grove]], California, is the peculiar destination of a huge quantity of such butterflies each year.
 
Each year, a few towns in [[California]] are greeted by the arrival of tens of thousands of [[monarch butterfly|monarch butterflies]].  [[Pacific Grove]], California, is the peculiar destination of a huge quantity of such butterflies each year.
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