Fly blowing a bubble

Flies sometimes "blow bubbles". There is no agreed explanation for this behaviour though a favourite hypothesis seems to be that it aids in concentrating the nutrient content of the liquid to be digested

Size: 4352px × 2533px
Location: Duton Hill, Essex, UK
Photo credit: © Nick Ramsey / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 100mm, animal, bubble, canon, digestion, digestive, ef, , fly, insect, juices, leaf, macro, nettle, nick, ramsey