I'm sure they must be primed before they do this tasks... otherwise they're far too clever.
It was fascinating seeing all the dots joined together. Recognising the high water mark, then tying the otter deaths with periods of high rain... GENIUS!
Building a raft platform to make constructing the walkway much easier was brilliant.
Wild Thing always seems to have such a clear narrative, and they (seem) to show you all the pieces in the puzzle.
We must be getting near the end of the series now, I hope we'll find out whether there will be a second series too.