Some mechanisms for evolution (And How Humans Could Evolve NOW)
There are women in Africa who don't get AIDS, as far as scientists can tell their DNA is scarred due to ancient AIDS outbreaks. This is 1 form of evolution via Epigenetics. This could happen on some scale with Ebola, could be a tribe could be the planet, who knows. But this is one mechanism for evolution and some Humans could be being pushed to evolve now.
DNA study
http://www.biomedcentral.com/1471-2148/12/237Case study
http://www.theguardian.com/world/2007/may/27/aids.featuresEnvironmental Changes, different environments call for different traits. And people like to think of this kind of evolution as "An Organism Evolved with the Right Traits". But that is not how this works. When the Environment changes, it favors mutants. For example, the rabbits with the mutant gene to grow a layer of white fur during winter will get hunted less in the snow and all the other rabbits die, so they do not pass on the "flaw". In the past things would happen like floods, and there is a theory that Humans split from Chimps by crossing a river, because Chimps are not prone to swimming like Humans and Bonobos. And Bonobos are considered to be our closest Relative.
Intergenetic Hybrids.
The Tribes in Papau New Guinea have Denisovan DNA mixed with Homosapien DNA, meaning their genetic go further back than Neanderthals. If someone gets a Denisovan and Native American to fall in love, we will have some evolution starting.
The people in Papau are still living there today
http://en.wikipedia.org/wiki/Papuan_peoplehttp://en.wikipedia.org/wiki/Asmat_peoplehttp://en.wikipedia.org/wiki/Korowai_peoplehttp://en.wikipedia.org/wiki/Kombai_peoplehttp://en.wikipedia.org/wiki/Iatmul_peoplehttp://en.wikipedia.org/wiki/Yali_peoplehttp://en.wikipedia.org/wiki/Dani_people New Predators can also change a species or genus. This is also something people like to think "The best animal evolves the best traits and wins" but that is wrong again. The thing that survives new predators is the right mutant. If you are a lizard and you live in a forest that has no leaves most of the year, then you are lucky if your the lizard that mutated to never be green. It's not something you would have thought was "better" if you were choosing at the womb, but it turns out you win.