STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY Blood clot. Coloured scanning electron micrograph (SEM) of red blood cells (erythrocytes, red) clumped together with fibrin (brown) to form a blood clot. Magnification: x5000.
Micro Monsters: scanning electron microscope images of insects, spiders and creepy crawlies Coloured scanning electron micrograph (SEM) of a maggot head "I've tested the book out on my son Ned and it hasn't given him any bad dreams, in fact he loves it. In particular Ned likes like the nasty worms." A maggot head