"Is there actually any proof of this at all, or is it just anthropomorphising something which is an innate instinct?"
Butterflies merely sip at nectar etc to feed themselves and this is clearly a learned behaviour since in their earlier "very hungry caterpillar" stage they gained memories of how eating one piece of chocolate cake, one ice cream cone, one pickle, one slice of Swiss cheese, one slice of salami, one lollipop, one piece of cherry pie, one sausage, one cupcake, and one slice of watermelon will give it stomach ache.
Biting the hand that feeds IT
