The issue here, speaking as a physicist, is that the range over which significant information can be transmitted this way is very small, because the strength of

The issue here, speaking as a physicist, is that the range over which significant information can be transmitted this way is very small, because the strength of the interaction is very weak. (If plants or bees routinely carried large charges, we'd have known it ages ago.) I'd be surprised if any of these effects were detectible (even to a tiny bee) more than a handspan or two away from a flower, for instance. So at best, two animals standing a few inches from each other might have some subtle extra ability to exchange information... but if you're bigger than a bee, why not just touch?