Each animal has a trait that keeps them alive. These traits have been developed by experience and survival instinct. This process is called Evolution.
For example, the Archer Fish had always seen insects on leaves but wasn't a fast enough swimmer to catch underwater prey. This caused the fish to starve to death. They soon developed a way to spit water at the insects and cause them to fall of their leaf so the fish can eat them.
Evolution is always continuing. The only thing that is consistent in life is change. What do you think Humans will evolve into? Will they develop a new skill or a new body?
I personally think they will grow taller and develop stronger bones and muscles. The common cause of death among humans has usually got to do with them being crushed or damaged seriously somehow whether it be hit by a car or dying in a fight of some sort. I've heard rumours that people with red hair are going extinct due to their vulnerability to the sun.
I heard a "fact" once that said blondes would be extinct within 200 years. I don;t think it is true but hey.
I think short term (evolution wise) races will become much less distinct as they inter-breed. But long term current theory suggest we will split into two main groupd of humans. One a short uninteligent gnome like creature and the other a tall good-looking inteligent human.
The last two are the future humans.
Just a theory though this is still predicting the future.
Evolution in the future will be complicated. Apart from nature, humans may possess enough technology to modify themselves at the molecular level and change everything. Not sure if this is true Darwin evolution though. One thing is sure though, nothing much will happen for a few millenium.
No that is one of them the other one, as I said, is also human but tall and unteligent. The interesting implication of this is who will your decendents be (even if this only hypothetical). Will they be tall or short.
I think that the human-race would envolve more, because there is no really selective pressure and so maybe there several new looks of humans, e.g. asian and black people and so on. Evolution takes so long and darwin said the evolution dont jump and i think the human-race won't live long enough to proceed to a new phenotype!
I think that we will develop a third or possibly even a fourth row of teeth, and our hands will grow bigger.
If it's one thing I know, it's that hands will grow bigger, as hands make the best tools. The palms and fingers will be larger, the fingers would be longer, and our eyes would develop better sight.
Why would we develop more rows of teeth? Evolution is nature's way of making sure life is adapted to it's surroundings as good as is possible. Mankind by now more or less slows down it's evolution, since having better genetical traits doesn't mean you won't survive as well. Does a small mouth mean you're more likely to starve? Does a big nose mean you're better at smelling our natural predators? Not at all. Perhaps resistance to things like AIDS will evolve - which won't show many (if at all) physical changes.