Fun Fact: Photoperiodism
Photoperiodism is a physiological reaction of plants and animals to darkness and light. Plants are classified according to photoperiods: "short-day" plants, "long-day" plants and "day-neutral" plants.
Along with temperature variations, in animals photoperiod provokes changes in the color of fur and feathers, migration, hibernation, reproduction and body development.
Source: wikipedia.org
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