Communication between organisms of the same species is often beneficial, for a variety of reasons: sharing information, signalling, bonding, etc. Yet currently the most advanced form of communication to have evolved, human language, is still very low bandwidth compared with the amount of mental processing our brains do.
It seems conceivable that our nervous systems might have evolved ways to directly (temporarily) interface with each other and exchange a large amount of information. For example, retractable bundles of neurons that are specialised at quickly forming connections with their counterpart neurons in conspecifics.
1. What is the main reason that this has not happened in any large animals? If evolution had continued without humans “taking off”, we would have eventually seen such neural links in some animal species?
2. What’s the closest thing to this we see in any species?