A fly is going about its day, buzzing here, buzzing there — but then, it starts behaving weirdly. Its movements become sluggish, and its abdomen swells. Its body sprouts white fuzz.
Around sunset, there’s a sudden burst of movement as the fly climbs — or “summits” — to an elevated location, like the top of a small plant or a stick, and extends its mouthparts. It spews out a sticky ooze that attaches it firmly to its perch — then it lifts up its wings and dies.
