If you have ever struggled with the sudden shift in routine imposed by the seasonal “springing forward” and “falling backward” of the clocks, spare a thought for the sled dogs of Ontario, Canada. Researchers say the time shift is measurably unsettling for those working dogs, whose days are dictated by strict schedules. When scientists from the University of Toronto put movement sensors on a group of Canadian sled dogs, they saw that the animals were active and moving around almost exactly an hour early – the morning after the clocks went back.
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