Humans have always marveled at the beaver's ingenuity since he always picks the narrowest part of the stream for the site of his dam. This fact was always cited as proof of the beaver's intelligence and engineering skill. Yet even a modest acquaintance with beavers will soon reveal that they are far from cunning beasts.
Even when presented with a clear pipe that showed water (silently) escaping through their dam and a speaker that played them the sound of running water, they chose to build over the speaker and ignore the clearly visible leak.
This instinctive quirk makes beavers easy for people to manipulate.
Poor Beaver-dono.
Updated
I'm worried...I'm gonna build a dam.I can hear the sound of water...It's said that beavers build dams in response to the sound of running water.
For more info, see here or here.Beaver-dono!?All right, now let's warm our chilled bodies!