Ancient bear made early migration

 Brown bears migrated south through Canada much earlier
 than first thought, Science magazine has reported. 

 The bears reached Alaska about 50,000 to 100,000 years
 ago, after crossing a land bridge from Asia. 

 But, according to traditional wisdom, thick ice blocked
 their route into Canada until roughly 13,000 years ago. 

 Fossilised brown bear fragments dating back about
 25,000 years have been uncovered in Alberta, Canada,
 for the first time. 

 The remains prove that brown bears must have made it
 through into mainland Canada before heavy ice closed
 the corridor from Beringia about 23,000 years ago. 

Last Updated: Friday, 12 November, 2004, 12:54 GMT
http://news.bbc.co.uk/1/hi/sci/tech/4003325.stm

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 "Perceptions" note:

 If the bears could make it - so could the humans!

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