For instance, most of us would have a very hard time surviving in the wild. And even then, we need tools in order to survive. Our physical strength is weak compared to many other animals. Why are we so weak compared to other wild animals who have no problem surviving on their own?
In: Biology
We evolved for endurance in hot dry climates. We evolved a detached shoulder which makes short arm movements less powerful than, say, a chimps, but fast whipping arm motions far more powerful, which is great for throwing things. The ability to throw things is a fantastic advantage. If I come at you with a powerful leg with claws, my claws and leg might break trying to fight you. If my spear breaks, I can just make a new one in a day or two. As far as solitary survival: lots of animals actually have a very difficult time surviving on their own as well. We also are the best endurance runners. If you are decently fit, you can chase an antelope to exhaustion, walk up to it, and stab it. On top of that, you can secure the whole kill, and re-purpose it. A lion will be able to consume some of its kill before it becomes useless and left to the rest of the wild. A human can finely butcher all of the meat off of it, extract nutrients from the carcass left using stewing, turn its skin into protection from the elements and some physical damage, and turn its bones into tools and weapons.
Humans can only do all of these things to the extent that they can because our limbs moved from being pure blunt force muscle to being semi-muscular and highly dexterous, able to deliver somewhat powerful physical force, but also made to multiply the effectiveness of that force by changing the nature of the tools we can make, and how we can use them, and, also, able to make protection so that we can stay in a fight longer without being mortally wounded, all of which require extraordinary dexterity to craft and use effectively (horses can wear armor, but only if humans make it and put it on for them). By losing mastery over our own animal capabilities, we gained mastery over the capabilities of everything else in reality. We evolved to be naked, because we expect to be fortified by the knowledge of our tribe by the time danger arrives. And it is less evolutionary advantageous to live in a tribe of precocious apes, than one of pathetic babies and children, surrounded by hardened veterans, who will eventually becomes hardened veterans themselves if the current hardened veterans can protect them into adulthood.
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