[BIGLOOK]

There was a beaver dam on a creek on my great uncle's dairy farm, it had been there for centuries and had created a peat bog of about 50 acres.

But the real problem for my great uncle's farm and the adjacent farms was the bigger the bog, the more beavers, the bigger the dam until it started flooding the pastures.

In the 18th and 19th centuries, the farmers trapped the beavers to control them and sell the pelts. But in the mid 20th century, the gov't sided with the beavers and trapping was severely limited.

'Rats are rodents too.

[Daffynition]