Evolution of tsaheylu

[auroraglacialis]

I was watching that seminar on the biology of Avatar yesterday:
http://www.tree-of-souls.com/science...gy_avatar.html

and one point the lecturer found suspicious and unbelievable about Avatar was the development of "the bond". He said, that there is no evolutionary basis for that and thus is purely fiction.

One participant in the audience had an interesting suggestion saying that the biological parts involved in the bonding could have developed as part of the reproductive system, basically as sex organs. There was a bit of a stirrup afterwards when people considered that this is a viable explanation but what it would mean then to bond with horses and trees

I had an other idea - maybe it was mentioned before and I missed that but I can imagine that the ability to bond like that with another being could develop as a mother/child bond. Basically like a detachable mental umbilical cord. The evolutionary path would be that at first that connection happens inside the womb, that way a newborn has already had communication with the mother, has learned and seen about the world - it would be a huge evolutionary advantage to be able to learn before birth about the world, about plants, enemies, predators etc. The next evolutionary step would then be that this bond becomes possible after birth. Much like the umbilical cord is replaced in mammals by feeding with breast milk (containing not only nutrients but also components of the immune system), a reactivation of this mental link could evolve. The advantage again would be to increase the learning period by sharing experiences directly.

The third step then is a bit more shady, namely how this evolved into interspecies connections and into a global network. Maybe that global network was a separate development, but maybe in a way it reflects also a mother/child bonding between the great mother and her children on Pandora - but that is departing now from evolutionary biology. Though if experiences can be shared and thus learning is happening through the bond, and the bond works in the same way for all the species derived from some ancestor, it is open of course to learning from other species.

So far what I was thinking about the possible evolutionary background of the bond - was this discussed before and were there good theories on it? Does anyone want to expand on this?