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From what i remember, it has to do with the noise of flowing water. Bevers find the sound annoying and will cover it until it stops.
I remember a study where they played river noises from a speaker and the bevers covered the speakers with sticks -- even in the absence of any water.
I'm not sure if this means that they are annoyed or if they use it as an indicator that there is something to do.
Super fair point, I'm projecting human emotions onto the beavers & don't actually know how they feel about the sound of running water lol
It can be both.
Should be simple enough: check their cortisol levels in the presence and absence of various water stimuli.
You say this like drawing blood from wild beavers is a trivial task!
Has anybody thought to just ask them?
Too busy, those beavers.
See, sometimes the best scientist needs to ask the simplest questions no one thought to ask.
Here is your Nobel Prize
Stick to the facts and don't get too deep into the woods. Good ideas will always float to the surface.
The problem is it's often hard to see the forest for the trees.