The next time you take your dog for a walk, just see how he pants after his exercise.

This panting is his way of cooling down, by expelling hot breath from his lungs.

Because he's hairy he can't sweat. Each 'hole' in his skin is occupied by a hair. That's why he's hairy.

Now we used to be as hairy, didn't we. During our hairy 'cave man' period. We too would have panted to lose heat after physical exertion; we still do a bit if you think about it.

But, and here's the thing, some where along the line we lost our hair. Although we still do see cases where the dormant gene is triggered and some poor soul pops out with a full suit of the stuff. In fact the circus used to be full of them, 'the beared lady' or 'alice the monkey girl' and 'Brian the Beast'.

In fact if you examine yourself, and your relatives, for a moment, there are some hairy oddities aren't there? Uncle Bill's hairy ears, Dad's hairy back. And what about your own hairy legs.

Through the loss of our hair, some millions of years ago, we suddenly had empty hair holes through which we could sweat. Yes I did say 'hair holes'. This meant we could now lower our body temperature and not need to pant like a dog to achieve it.

This kind of left our mouths and lungs a bit redundant in the cooling department. But, gainful new employment was found and we learned to use this extra capacity to make new noises just for the fun of it.

Ughh? - I said this allowed us to make noises just for the funs of it. Get it? Got it? Good.

It was of course the primative beginnings of human communication. The first crude words. And they probably were too!

But also, through our developing communication came the opportunity to share ideas. To achieve agreements and make great strides in development.

Think about that the next time your cursing having to shave under your arms or you're ripping yourself clean with a wax strip.