beavers

http://www.youtube.com/watch?v=kZVbKwDmr-o

http://www.youtube.com/watch?v=VuMRDZbrdXc&feature=relmfu

http://www.youtube.com/watch?v=TgAux-KaaMk&feature=relmfu

http://www.youtube.com/watch?v=iyNA62FrKCE&feature=related

http://www.youtube.com/watch?v=TfVKY8ZGXXM&feature=related