Rainbow Eucalyptus trees on Maui, Hawaii The phenomenon is caused by patches of bark peeling off at various times and the colors are indicators of age. A newly shed outer bark reveals bright greens which darken over time into blues and purples and then orange and red tones.
クマムシ・Under an Electron Microscope The tardigrades, (Paramacrobiotus craterlaki) feeds on nematodes and rotifers. This animal was found in a moss sample in a crater lake in Kenya. Water bears are found throughout the world, in the Arctic, high mountains, the tropics and the ocean to the deep sea. scanning electron microscope, magnification 400:1 (in 12x12cm)
Axones nerviosos - A cross section of a bundle of nerve fibers. Axons (orange) are wrapped in myelin (purple); an extension of the membrane of glial cells. Myelin has high lipid content, and acts to insulate the axons, causing them to transmit nerve impulses much faster.