As our planet’s most physiologically complex organism, the human animal still shares basic survivalsavior.com survival needs with many any other mammals and even lower organisms. As a mammal, thus, the human animal requires these 5 things for long term survival: oxygen hydration food shelter sleep OXYGEN This pretty much requires no explanation. Everyone is aware of how important oxygen is to survival. While the human body can be trained to survive a minute (or several, in some cases) without oxygen, it is designed for constant respiration. This means that even though you can hold your breath, it is extremely uncomfortable;…