Fighting beavers?

[3nails]

 The last 5 beavers we have trapped had gashes in thier backs about 6" up from the tail and an inch or two long. At first I thought it might be from a sharp object inside the cage but the last two were in cages that had nothing sharp in them. I am wondering if maybe they fight this time of year? Anyone else see this?

[wags]

Welcome to spring beaver trapping.  Actually though, you can see that kind of activity at any time of year especially where there are high beaver populations whose territories overlap.

[Humptulips]

Yep, The more beaver the more bites. Worst in the spring.