Actually, I think you have 'jumped the guns' so to speak on this subject, in saying that hair provides little to no insulation for an animal. This just isn't true.
In fact, in 2004, Harvard students shaved a camel, and found it's water loss due to sweat increased by over 30%. As well, it would seem logically correct, since physically most animals living in warmer climates have fur, such as Zebras, Giraffes, Lions, Tigers, Apes, Monkeys, Oxen, Antelope, horses, cows, hyenas, etc. You get the point.
There are many reasons that contradict apes `evolving` from quadrupeds to bipeds, losing their fur, etc. But I think for this particular subject, this information seems relevant.
Although these sites seem to say 50%. It's been a few years since I first read about it so I am probably mistaken, and they actually sweat 50% more.
And no, I don't care to start a new thread. I just started on this a few hours ago, and don't have enough time to answer the threads that alread exist. I'm sure there is a thread discussing the various subjects....plus I don't know the first thing about starting a thread. The study of evolution and creation is just a hobby for me, and hobbies are supposed to be fun. I much prefer to jump into conversations unannounced and blurt random facts. This is fun.
Another point to notice is that generally humans grow hair where apes do not. the face and chest are prime examples, since apes are hairless there, or sparse, but humans (especially males) grow hair in these areas. Even female humans grow chest hair and nipple hair (as much as we would like to ignore it, lol).
I'm a little confused as to the sensory point. It's unclear to me how this would be an advantage or disadvantage either way. More detail??