Diatoms are microscopic unicellular algae and are one of the most common types of phytoplankton. Oceanographer Paul Hargreaves took the images with an electron microscope, and then the artist Faye Darling using design programs colored them.
Pedicellaria : appendage of sea urchin, ( genus sperosoma : coated / calcified : 100 x magnification ). Pedicellariae are positioned on moveable stalks and are distributed between the spines and tube-feet of sea-urchins. Some of the collagen in the pedicellaria is of the “catch” type, that is, it is at one moment stiff and supportive and, at the next, soft and flexible. [SEM by Daniel Leduc ] specimen in low vacuum mode. Hitachi TM3000 Benchtop Scanning Electron Microscope (SEM)