A giant green acleris semipurana caterpillar squeaks adorably when gently touched by a human. According to MrInsaneInside, a commenter who appears to have a little knowledge about the subject, the caterpillar was not being harmed.

She actually doesn’t even make the sound on purpose, when the guy touches her but she just automaticaly [sic] withdraws, her trachea gets squished and the air in it just gets out, making this sound. At least I think it works like this with caterpillars, I’m sure with Death’s Head Hawk Moth it does… bottom line, the caterpillar is not in pain, she’s just more like “dafuq?”

via Nothing To Do With Arbroath