Dear Cecil and Teeming Millions:
I was walking home and noticed some big wasps licking flowers. Fascinated, I drew closer and observed them feeding. I noticed that the wasps’ abdomen (lower segment) was pulsating; the segments were extending and retracting continuously. I though it looked a lot like breathing, but I know that insects breath through small openings in their body, not trough lungs like vertebrates do.
I’ve never heard of this phenomenon before and I’m intrigued. I would theorize that it has something to do with digestion, similarly to our stomach churning food.
My questions are: Why do they do that? Do they do it continuously? Do many other insects do it too?
Only humans commit inhuman acts.