What is the evolution of beaver dam building?

Beaver dam building is a pretty fascinating topic. Unfortunately, no-one really knows how beavers evolved, let alone how dam building behaviour evolved [1] Here's a good fact though - the biggest known beaver dam is a whopping 850 metres long and is situated in Alberta, Canada [2]. Wow! Why build dams? read more

Beaver dam building is a pretty fascinating topic. Unfortunately, no-one really knows how beavers evolved, let alone how dam building behaviour evolved [1] Here's a good fact though - the biggest known beaver dam is a whopping 850 metres long and is situated in Alberta, Canada [2]. read more

The Evolution of the Beaver By Dolores Kimball While walking in the park yesterday, my husband and I saw a beaver dam on the stream, and we began discussing the evolution of the beaver. read more

Another large beaver dam measuring 2,139 feet (650 m) long, 14 feet (4.3 m) high and 23 feet (7.0 m) thick at the base was found in Three Forks, Montana. As tool use. It is claimed by some that by building dams, beavers are expressing tool use behaviour. However, the definition of tool use by animals is highly contentious. read more