"Things You Wouldn't Know If We Didn't Blog Intermittently."
04 December 2010
This fly inflates its head
The inflation is done by pumping hemolymph into the head; the maneuver is necessary because the fly uses head inflation to break the walls of the chamber in which it hatched from its larval form: "Newly-eclosed flies use their head blister (ptilinum) to exert hydraulic pressure on particles of the cell partitions and produce small holes."
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