The world is full of wonders, but many of them aren't so obvious. Whether you're a photographer or a scientist, or you just enjoy the beauty of the natural world, the little things are often the most ...

IF a microscope or other apparatus fitted with cross-wires is not available, a convenient substitute may be made by placing a coverslip carrying two filaments of seccotine at right-angles between the ...

A female Brachionus manjavacas rotifer, as magnified under a microscope. This rotifer is 350 µm long; about the size of a grain of sand. The hair-like cilia at the top of the individual are used for ...