What is the longest you would recommend for an inexperienced hiker who is in great physical shape (51years old), to spend hiking in Grand Canyon?
3-4 nights too much?
I heard that only 50% of what the elephant eat is digested, so it's dung still has lots of nutrients.
I saw it on TV where dung beatles live on elephant dung.
My question is can a human exist on elephant dung and water alone?