i never knew until i started taking very close-up shots of flies that they 'blow' bubbles ..
you'll have a shot of a fly and the next shot, a second or two later, there's a bubble coming out'v his mouth .. i think they regurgitate the liquid .. this particular bubble is very clean looking .. i've seen some that look cloudy and horrible ..
sorry to gross ppl out .. but i find it fascinating .. !!!
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