beavers are a geological force, and along with several other large animals shaped much of surface of our planet, which is where we evolved and prospered, and th

beavers are a geological force, and along with several other large animals shaped much of surface of our planet, which is where we evolved and prospered, and there is a strong case to be made that our own interactions with the landscape used to be in many ways complementery to a full thriving ecosphere, which has of course become extractive, and exploitive in non sustainable ways