A beaver uses his own hands, using God given trees etc, to build their dams, that trap their food, in to a specified area of the river, making them a grocery store out of nature?Why are dams beavers build natural but a dam a person builds not natural? I always find it interesting that people feel like we humans are not part of the natural world. We didn't come here from some alien planet, so everything we do to change our environment is just as much a part of nature as any other animal that changes their surroundings to better suit them.
Man uses machines named Gigantica in a horror movie, to unnaturally block a river for electricity or to bring water to dry lands that were never created by God or Nature, for farming Almond trees???