This 20 piece set focuses on various forms of seed movement away from the originating parent plant. Includes transport through wind, water, animals, gravity, ballochory, and seed pods that require the heat of wildfires to open. The set includes 10 PNG color illustrations, 10 PNG blackline / grayscale versions. These are high resolution (300 dpi) transparent background graphics. No watermarks will appear on the files that you download. The clip art illustrations measure approximately 6 inches to