False-colour scanning electron micrograph (SEM) of a sample of household dust from a vacuum cleaner, showing a dust mite ^IDermatophagoides sp^i. The mite thrives in damp houses feeding on furniture stuffing, groceries, wallpaper paste and other such delicacies. It is seen here foraging among skin scales, cat fur and soil particles. Magnification: x112 at 6x4.5cm.