2 November 2015 Last updated at 16:12 GMT
It shows a beaver - caught in daylight which is very rare - having a good scratch.
Wildlife film maker Tom Buckley also caught the animals carrying their young down the river.
They were also caught taking turns to gnaw away at a small tree trunk - before it snapped.
They took shifts and worked all night to bite chunks out of the bark, to make the tree weaker.
And you can see more on this on the BBC's Inside Out programme in the south-west.
Look at this incredible footage of one of nature's most secretive creatures captured by a wildlife fan in Devon.