False colour SEM of the foot of a housefly

False colour SEM of the foot of a housefly

Z340/0199 Rights Managed

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Credit: DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY.

Caption: False colour scanning electron micrograph of a foot of a housefly, Musca domestica. The foot of the fly consists of two claws, two pads or cushions called pulvilli (washing up pads) & a long bristle between the two. The foot serves a dual purpose; on rough surfaces the claw grips & on smooth surfaces the miniature tubes covering the pads secrete a substance, which enables adhesion. It is uncertain whether the tubes secrete a glue or whether physical effects of surface tension & molecular action account for the adhesion. Many of the hairs, or setae, on the insect serve as tactile sensory organs. Magnification: X 54 at 35mm size. Original is bw print z340/186.

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Keywords: animal, fly, foot, foot of, foot of housefly, housefly, insect, insecta, invertebrate, invertebrates, musca domestica, nature, pulvillus, wildlife, zoology

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