A coloured scanning electron micrograph (SEM) of the head of a maggot or larva of a bluebottle fly (via):
[Picture: EYE OF SCIENCE/SPL/BARCROFT MEDIA]
The maggots of this fly are used medicinally to clean wounds. The maggots are sterilised and placed in the wound, where they feed on dead tissue and leave healthy tissue untouched. Their saliva contains anti- bacterial chemicals which maintain sterility in the area. Maggots are used on ulcers and deep wounds away from organs or body cavities, most often being used to treat diabetic ulcers on the feet.
More SEM creepy crawlies at the Telegraph.
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