Template:POTD/2011-05-03
The head of a flesh-fly, a family of flies. Flies have a mobile head with eyes, and, in most cases, have large compound eyes on the sides of the head, with five small ocelli on the top. The antennae take a variety of forms, but are often short, to reduce drag while flying. Fly mouths do not contain teeth or anything else that would allow them to eat solid foods.Photo: JJ Harrison