Close-up of a pair of muscid house flies (Helina species) mating on a leaf in summer. Photographed in Norfolk, UK.

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Size: 4906px × 3561px
Photo credit: © NIGEL DOWNER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: animal, hirudinea, hirudo, invertebrate, invertebrates, leech, medicinal, medicinalis, nature, officinalis, wildlife, zoology