This is a highly magnified Scanning Electron Microscope view of the surface of one of the hadrosaur teeth, showing the scratches created about 67 million years ago by tooth movements and feeding. The ...
A magnified view of a stoma on the leaf of a Tradescantia albiflora albovittata plant, commonly known as a giant white inch plant. Animated GIF of a plant stoma opening and closing. A video of a tiny ...
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