Porcupine Quills Magnified
Dec. 24, 2024
Why Porcupine Quills Slide in with Ease But Come Out with Difficulty | Discover Magazine Microscope + porcupine quill = Ouchy awesomeness! Episode 1 of "Dude with a Microscope!" - YouTube UC San Diego Jacobs School of Engineering blog: What Do Porcupine Quills and Toucan Beaks Have in Common? Porcupine Quills Magnified