Results 1 to 5 of 5

Thread: World's biggest beaver dam discovered in northern Canada

  1. #1
    fgg is offline
    Elite Member fgg's Avatar
    Join Date
    Apr 2008

    Default World's biggest beaver dam discovered in northern Canada

    World's biggest beaver dam discovered in northern Canada

    AFP/HO This 2008 handout photo courtesy of the Wood Buffalo National Park in Northern Alberta shows the world's

    by Michel Comte and Jacques Lemieux Michel Comte And Jacques Lemieux Wed May 5, 7:46 pm ET

    OTTAWA (AFP) A Canadian ecologist has discovered the world's largest beaver dam in a remote area of northern Alberta, an animal-made structure so large it is visible from space.

    Researcher Jean Thie said Wednesday he used satellite imagery and Google Earth software to locate the dam, which is about 850 metres (2,800 feet) long on the southern edge of Wood Buffalo National Park.

    Average beaver dams in Canada are 10 to 100 metres long, and only rarely do they reach 500 metres.

    First discovered in October 2007, the gigantic dam is located in a virtually inaccessible part of the park south of Lac Claire, about 190 kilometres (120 miles) northeast of Fort McMurray.

    Construction of the dam likely started in the mid-1970s, said Thie, who made his discovery quite by accident while tracking melting permafrost in Canada's far north.

    "Several generations of beavers worked on it and it's still growing," he told AFP in Ottawa.
    Mike Keizer, spokesman for the park, said rangers flew over the heavily forested marshlands last year to try to "have a look." They found significant vegetation growing on the dam itself, suggesting it's very old, he said.

    "A new dam would have a lot of fresh sticks," Keizer explained. "This one has grasses growing on it and it's very green."

    Part of the dam may have been created by naturally felled trees, and the beavers "opportunistically filled in the gaps."

    Thie said he recently identified two smaller dams sprouting at either side of the main dam. In 10 years, all three structures could merge into a mega-dam measuring just short of a kilometer in length, he said.

    The region is flat, so the beavers would have had to build a massive structure to stem wetland water flows, Thie said, noting that the dam was visible in NASA satellite imagery from the 1990s.

    "It's a unique phenomenon," he said. "Beaver dams are among the few animal-made structures visible from space."

    North American beavers build dams to create deep, still pools of water to protect against predators, and to float food and building materials.

    A 652-meter structure in Three Forks in the US state of Montana previously held the record for world's largest beaver dam.

    Thie said he also found evidence that beavers were repopulating old habitats after being hunted extensively for pelts in past centuries.
    "They're invading their old territories in a remarkable way in Canada," he said. "I found huge dams throughout Canada, and beaver colonies with up to 100 of them in a square kilometer."

    "They're re-engineering the landscape," he said.

    World's biggest beaver dam discovered in northern Canada - Yahoo! News

  2. #2
    Elite Member MsChiff's Avatar
    Join Date
    Mar 2006
    ♥In your heart ♥


    Oh I thought this would be a picture of some woman. lol just kiddin' not trying to take away from it's beauty. This is very interesting.
    Fighting for peace is like fucking for virginity.

  3. #3
    Elite Member sputnik's Avatar
    Join Date
    Oct 2005
    fellow traveller


    lol mega-dam
    I'm open to everything. When you start to criticise the times you live in, your time is over. - Karl Lagerfeld

  4. #4
    Elite Member mtlebay's Avatar
    Join Date
    Oct 2005


    Beaver power!!!
    Go Habs Go!!

  5. #5
    Elite Member Laxmobster's Avatar
    Join Date
    Jul 2007
    Down by da beach....boyeee


    ^ Cool Avi!

    That dam is pretty cool, multiple generations working on it. I just wish they had closer pictures.
    Quote Originally Posted by Celestial View Post
    I also choose to believe the rumors because I am, when it is all said and done, a dirty gossip.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. World's biggest breasts
    By WhoAmI in forum Breast Augmentation
    Replies: 101
    Last Post: November 28th, 2011, 08:42 AM
  2. World's biggest alarm clock
    By Chalet in forum Laughs and Oddities
    Replies: 4
    Last Post: January 8th, 2010, 01:38 AM
  3. The world's biggest burger
    By Honey in forum Food and Cuisine
    Replies: 5
    Last Post: September 18th, 2009, 04:55 AM
  4. World's biggest killer spider
    By celeb_2006 in forum Pets and Animals
    Replies: 5
    Last Post: March 24th, 2009, 07:50 PM
  5. World's Biggest Rabbit gets Married! (video)
    By AliceInWonderland in forum Pets and Animals
    Replies: 0
    Last Post: April 6th, 2006, 05:46 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts