Evolution of Nipple Fascination

To what extent are we related to gorillas? Well I do not know, but we do seem to share a fascination with nipples. A very common request of Koko the signing gorilla is to 'see some nipple'. A very common request of signing babies (around 9 months) is for 'Milk', which can be nipple or bottle. Phylogeny and ontogeny meet once again? The gesture people in Chicago say gesture can be a window into our minds. And what is on our minds? Wish you were here? (source Wikipedia)

Tags: evolution, animal, gorilla, desires, needs, nipple, baby sign