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Phenology is a science that anyone can practice without a lab coat, microscope, or PhD. It's the study of seasonal events such as first flowers, appearance of certain butterflies, etc. People have tracked these dates for decades -- even centuries -- and now there's a place on DK to record your own observations. A casual spot to tell what you're seeing in the park down the road or in your own back yard.

Awareness and action for the crisis in Puerto Rico.