Brown trout can pass beaver dams, study finds

The research looked at how brown trout deal with beaver dams as they attempt to move upstream (Alamy/PA) -

Brown trout can successfully navigate beaver dams in defiance of many people’s expectations, according to a study.

The research monitored trout movements in two streams in northern Scotland, Allt Coire an t-Seilich and Allt a’Choilich – with the former modified by a series of four beaver dams and the latter unaltered.