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Show Milkweed Sevda. The milkweed seeds are conceal pod. which breaks pen snd exposes ex-poses them to the wind. Up they through the air, each seed carried by a ball of silky down, the threads so frail that you are astwilshed When you examine thera with s microscope Each thread turns out to be a separate tube ribbed with dark vein-like streaks arranged In an Irreguinr manner. When a milkweed pod bursts open, you can imagine yourself at a miniature minia-ture aero meet, In which scores of white crait soar up Into the mom lag wind. N |