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A reindeer’s yearning to travel can be read in its genes

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The fingerprint of the last ice age can still be seen in the genomes of reindeer that make long migrations.

Should I stay or should I go? Some reindeer, also known as caribou, are homebodies; others migrate more than 1,000 kilometres a year. Credit: Mark Bradley, Parks Canada

Some reindeer make epic migrations of more than 1,000 kilometres a year, whereas others stick close to home. Scientists have now linked a reindeer’s tendency to migrate and its genetic heritage

 

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