Future of humans' physical traits

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I was discussing with my roommate about the use of finger nails, and toenails that I found out that humans barely use toenails or even toes. If the evolution theory of Darwin is correct that we are pretty much come from the same family with chimpanzees, humans are still in the process of evolving. Comparing the ratio of the lengths of toes to the lengths of feet, we can see that this ratio is relatively small compare to the ratio of  the lengths of fingers to the lengths of hands. Are humans' toes are getting shorter? I strongly believe the answer is "yes". We are evolving by getting rid of what we don't need because it's a cost of energy for nothing. Chimpanzees have very long toes relative to human, and their toes are used for climbing. Our toenails are also somehow shorter than our fingernails. What's the point of having these "claws" anyway? What will happen in the next million years or even haft a million years? Will humans have toes, anymore? The answer for this question does have relation with the reason why we don't have tails or a lot of hair covering our body like chimpanzees. It all comes to one answer "if we don't need it, our bodies will try to get rid of it".

There's another trait that I want to point out that is it true that our noses are getting bigger because of the polluted air? Well, our noses are relatively bigger than chimpanzees for the fact, and with the increase of dust in the air, the human body definitely need a more sophisticated respiratory system to filter the pollutants. One of the solutions is a big nose with lots of hair. Eww!!! Yes, I know but that's the direction human is "racing" to.

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On a brighter side, technologies may improve our physical traits. For example: straighter teeth, smoother skin, bigger boobs.  A lot of artificial objects are being attached to our bodies to increase our vision, hearing, beauty, strength... Therefore, there's nothing unreasonable that one day human can run a hundred mph, fly like a bird, swim and breath like a mermaid. It's just a matter of time before our  scientists and engineers develop such attractive abilities for humans, and these traits become socially acceptable. Soldiers will have infrared vision, their brains connect to a computer system, radars... along with metallic skulls, stronger muscle, supersonic ears. Pilots will have pairs of fold-able wings near their shoulders, and compressed oxygen tablets attached to their lungs in case their planes crash into the ocean. Wall street banker will have a calculator attached to their brains or even a tiny supercomputer. There are zillions of other unimaginable abilities, technologies can bring to human bodies. As I said, it's just a matter of time that science and technology will bring about these possibilities, and perhaps it will even take longer for these possibilities to become socially acceptable. However, it can't be denied that we are heading to this direction, for example we are using contact lenses attached directly into our eyes, artificial blood in place of real blood, artificial kidney, ceramic teeth... We are going there, the only problem is how long we want to wait.

Dragon: a legendary creature or a evolutionary possibility

Have you ever been to a circuit to see magician breathing fire? Or at least saw those tricks on TV? Dragon or perhaps any kind of creature might have possess the ability to breathe fire with the same mechanism as magicians, except dragon didn't need external fuel for its trick. Just look at human body for instant, we can involuntarily produce methane (CH4), a highly flammable gas, through our digestive systems. Why not dragon? Ever saw AFV (American funniest video)? There was a fat man farted into a small flame, and got his gas ignited burning his friend. With fire-breathing ability, dragon could have use them for hunting, defending, or even warming. So there was a high chance that dragon might evolve just to do that. All dragon needed was a spark to ignite methane gas or any flammable gas they possibly produced. A biologist, may argue that how can animal make fire while ancient humans discovered fire not so long ago? As I previously stated, all dragon needed was a spark, it could be an electrical spark! Again, physicists may disapprove even more strongly than biologists because Maxwell united the electric force and magnetic force just more than a century ago, and the existence or use of electricity  didn't reach its technological momentum until 20th century. Have you ever heard of electric eels? Yeah. That's the answer! Some animals can produce electricity by themselves. Several years ago, I had the opportunity to see Christmas lights flashing different colors by the electrical energy produced by electric eel on TV. It was an idea originated from Japan, but I didn't have chance to do more research on this. So, what's the point? As we see, nature/animal can produce methane and electricity. The right combination of this two conditions with certainly create a fire breathing creature which we call dragon. Why dragon didn't get kill by its hot fire? The fire didn't come from the stomach of the dragon or any where inside its body, but the fuel which was methane was breathed out through the dragon's front doors (which was opposite to the fat man in AFV using his backdoor). Therefore, it's reasonable to deduce that the electric spark was ignited at the every end of these methane doors.

What's about the other things? Like flying, and poisonous part of dragon?

Flying can be seen in animals, birds for instance, but it doesn't stop there. The history of celestial monsters dates back to hundreds millions years ago, when dinosaurs still rampant the earth. Dragons might have been flying side by side with Pterosaurs and even hunting these poor dinosaurs with their fires. What's about the poison part of dragon? Most snakes have poisons, even some frogs, spiders… have poisons. So there's nothing unimaginable about poisonous dragon.

There's one more question from many specialists and laymen which is "where's the dragon?" I don't know. It may be extinct along with dinosaurs many millions years before early humans came to being. So where's the skeleton. Yeah, about that. Archaeologist may have found many of them, but they still want to call those "dinosaurs". With our current technology, we can't tell if dinosaur (or maybe dragon) have specific organs or systems to breath fire. Scientists can only tell the functions of specific bone structures (since bones were all left after millions years), but they can't pinpoint a stomach like chamber which kept the methane gas. That's because this chamber would have certainly decayed or transmuted into something totally different from its original form if the chamber had ever existed. So in the course of our technological development, we can hope that one day we can unravel the existence of dragons or may call them back to being thanks to our bio engineers. With the simple mechanism of methane gas and electrostatic spark, dragon is no more a legendary creature than an evolutionarily possible animal.