Question: will humans evolve further? cos if the theory of evolution is correct, then we've already evolved out of the weaker prehistoric ape species. if humans will evolve further, how?

andy chapman answered on 9 Mar 2016:

We are evolving all the time. We can see it when we study our DNA and compare it to older samples found in very very old human remains. Evolution is a VERY slow process remember so it may never look like it is happening in our own lifetimes but it is. Have a look at this exert from http://www.yourgenome.org/:

One example of recent natural selection in humans involves the ability to tolerate the sugar, lactose, in milk. In most parts of the world, adults are unable to drink milk because their body switches off the intestinal production of lactase, an enzyme that digests the sugar in the milk, after weaning. As these people cannot digest the lactose sugar they suffer symptoms including bloating, abdominal cramps, flatulence, diarrhoea, nausea, or vomiting.
Yet, more than 70 per cent of European adults can quite happily drink milk. This is because they carry a regulatory change in the region of DNA that controls the expression of the gene that codes for lactase. This DNA change enables the lactase gene to be switched on and lactase production to continue, even after weaning. This genetic change appears to have happened between 5,000 and 10,000 years ago, which is around the same time domestication of milk-producing farm animals, such as cows, was established in Europe.