Spatial synchrony in musk ox (IMAGE)
Caption
One study of spatial synchrony from the early 2000s examined two populations of musk ox on opposite sides of the Greenland Ice Sheet. Even though they were separated by 1,000 miles of ice, their populations fluctuated in sync — they had good years and bad years at the same time.
Credit
Hannes Grobe/Wikimedia Commons
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CC BY-SA