How leaves change colour in fall

Runners and bikers were out in force taking advantage of the continuing warm weather and enjoying...

Runners and bikers were out in force taking advantage of the continuing warm weather and enjoying the autumn leaves along Memorial Drive in Calgary, Alta. on Sept. 23, 2012. (MIKE DREW/QMI AGENCY)

QMI Agency

, Last Updated: 12:24 PM ET

Leaves are bursting out in a full colour display. Check out our graphic to see how they're doing it.


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