SciShow shares fun facts about nature's greatest engineers: the beaver! Special thanks to Dr. Heidi Perryman of http://www.martinezbeavers.org/ for pointing out some of our photo examples...
========== They're one of the largest rodents in the
world, they're indisputably adorable, and hey, Canada doesn't put just anyone on their
money. But the main reason you should appreciate
beavers is that they're second only to us in their ability to completely transform the
environments they live in. Usually for the better, though. While we like to surround ourselves with warehouse
stores and hamburger restaurants, beavers will turn a stream-fed meadow -- even a patch
of desert -- into a lush, watery habitat for all sorts of wildlife, aquatic and land-lubber
alike. They do it, of course, by building dams. And
darn, can these guys dam. Most beaver dams are 5 to 10 meters long and
form small ponds behind them. But sometimes these structures have been know...