Jumping spider. Coloured scanning electron micrograph (SEM) of a jumping spider (family Salticidae). Five of its eight simple eyes (ocelli) are seen here (pink). This small tropical spider has strong hind legs and can jump up to fifty times its own body length. It hunts its prey rather than catching it in a web. Its excellent vision allows it to spot the prey from a distance. It then creeps up and pounces by jumping, whilst trailing a safety line of silk behind it. Magnification: x20 at 6x7cm size.