I accept evolution as the most likely explanation for how we all are what we are, but DAMN. That's just amazing. You gotta wonder what steps were taken over the eons for the moths to form a nasty barbed proboscis like this.
I mean, the moths had to be smart enough in the first place to sneak up on sleeping animals and suck their tears, which I suppose isn't such a leap. We've all seen flies buzzing around the eyes of cattle or starving Ethiopian kids. These moths just do it at night. But then they had to evolve barbs at some time. Amazing. Just amazing.