Dancing Caterpillars

 

We brought a few Monarch caterpillars in from our huge milkweed plant. After about 3 weeks they make a chrysalis and hatch...then we let them fly off to come back another year.
Any way we discovered quite by accident that they dance to music...just some low notes, not the higher notes.  My DH thinks it is because it is close to the tones of a wasp or beetle and they are trying to be intimidating.