Girl conducts a simple test to find why her caterpillars randomly jerk their heads VIDEO

This is funny

That's pretty cool, I still don't know why they do it but I'm guessing it's similar to the frequency of a predator and it may be a defense mechanism or just simple reflex

they probably thought it was some music that went really really hard

I cringed and laughed so hard at the same time.

Hehehe