Beavers officially exceed humans in awesomeness

Suprisingly, humans build stuff the same way: link

Incidentally, if you ever get a chance to see the Imax movie "Beavers," do it. It's actually one of my favorite movies (nerd that I am.) They show how two beavers take a stream and forest and turn it into a lake over the course of a couple of years. Totally amazing.