although passing for the scales on a blue dragon, this is actually an extreme close-up photo of the iridescent stripe on the wing of a Mallard Duck. the feather starts off with a main shaft (or quill) with hundreds of branches (barbs) protruding from the side. zooming in on one of these barbs, there are again hundreds of protruding tiny branches (barbules) on each barb. this photo captures approximately 4 of these barbules and their scale-like shapes. each of these 'squares' measure around 0.0012 inches across (less than the thickness of aluminum foil).

Yucca tree (Yucca brevifolia) in Mojave desert.

Raindrop suspended on small branch

top of MarcaHuasi in Perú

tall Saguaro cactus towering over others in southern Arizona

an 80-foot waterdrop along the McKenzie River in Willamette National Forest

This is called "get the shot and run for cover". I'm wading waist-deep to get the desired camera angles and when i saw this swell raising more and more, i knew i would be grabbing the camera and heading for more shallow water before i get clobbered.

a super closeup photograph of a swimsuit (Ocean Pacific, if you're curious). all the nylon/spandex fibers are white and only the portions toward the outer surface are dyed with a pattern of colours. the spaghetti-like strands seen here, are the ultra-tiny fibers that make up a single thread. these 'micro-threads' measure only 0.0004 inches in diameter (thinner than kitchen plastic wrap), and quite a few are bundled together to create an actual thread used to knit the fabric.