Sea urchin tube feet

Ever wonder how sea urchins move? They have neat “tube feet” around their entire body, which extend using a water vascular system and have ends that attach to surfaces. The S. purpuratus urchins I work with are really good at attaching to surfaces, so whenever I move them, they leave lots of tube foot endings. So, of course, I took some pictures of the remnant feet under a microscope (each image is at a different depth, since these are 3-D entities).
These feet were bright orange and blue/gray colored, but the camera is monochrome, so I’ll leave the color up to your imagination. -Yasmeen

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