Naked Science Forum

Life Sciences => Plant Sciences, Zoology & Evolution => Topic started by: cheryl j on 11/11/2011 00:57:28

Title: How do beavers build dams?
Post by: cheryl j on 11/11/2011 00:57:28

I was looking at a beaver dam a while ago,standing on it, actually. And there were some really big logs in it, which I realize float, but I would think they would still be hard to drag down the shore, into the water, and manuever them around. Plus there were also very large rocks on top to hold things down. Do two beavers move these rocks, like two guys moving a couch?

(I think I may have posted this question before but I cant find it.)

Title: How do beavers build dams?
Post by: Don_1 on 11/11/2011 17:24:38

How's this (http://www.telegraph.co.uk/news/worldnews/northamerica/canada/7676300/Worlds-biggest-beaver-dam-can-be-seen-from-space.html) for a Beaver dam!

They just beaver away at it for ages. Look at this site for some pretty good info: http://fohn.net/beaver-pictures-facts/beaver-dams.html (http://fohn.net/beaver-pictures-facts/beaver-dams.html)

Title: How do beavers build dams?
Post by: imatfaal on 11/11/2011 17:53:38

Don - I couldn't access the link directly - but found if I googled "Worlds-biggest-beaver-dam-can-be-seen-from-space"  the torygraph article with amazing picture was the first article

Title: How do beavers build dams?
Post by: Mazurka on 17/11/2011 12:58:02

Wow, that is not something I had thought about before, but that article was fascinating and that massive dam is impressive. 

I must say that the statement "can be seen from space" amuses me - particularly when resolution for the latest earth observation satellites is <50cm...