THE WHY. “One must ask: why should termites build a spire in the first place, if there is a one in three chance of having to do it all again? Cognitive exuberance might indeed be the apt word to describe this phenomenon, but it could be put more prosaically thus: it is the reflection of a species, M. michaelseni, that puts more “meaning” into a surfeit of water than does the other.”
https://link.springer.com/article/10.1007/s12304-016-9256-5