https://www.pnas.org/content/111/18/6672 https://www.pnas.org/content/111/18/6672 - an example from the plant world. I suspect (no evidence!) it's one of those

https://www.pnas.org/content/111/18/6672 https://www.pnas.org/content/111/18/6672 - an example from the plant world. I suspect (no evidence!) it's one of those things where the more you look the more you find - in plants, at least.