The first thing to do is check their evidence. There are mountains of it so you should have no difficulty finding some. Biological evolution is driven by mutations.
Even in people, there are a great many genetic mutations. You can find out information about that online. Because of mutations, each individual human has DNA that is genetically different from the general population.
(This is also true for all other animals and plants.) That's why DNA testing is more reliable than fingerprints for criminal or paternity investigations. Although most variations are internal and are not observed accept by specialists, you may know someone that has slightly misaligned toes, an ear shape that seems unusual or some other feature that is noticeably not in the general public. You may also notice when these traits are in several members of the same family.
This is evolution in progress. ----- ----- -----? ----- HOW TO SEE EVOLUTION NOW You can observe it in your own home.
Start with a species and drastically change its environment, and then observe the resultant changes in the population over generations. Remember; populations evolve, not individuals. Of course, to view it within a reasonable time period, you would need to start with a species that reproduces very quickly and in vast numbers, such as bacteria.
This is easy to do and has been done many times in laboratories. (Of course, it occurs in nature constantly in life forms large and small.) Test and record the DNA of your chosen bacteria. This is not as difficult as it may sound.
You don’t need a complete sequence list of every base. Alternatively, there are many labs that will do it for you and are not very expensive. The original bacteria may naturally have: some ability to recognize food or dangerous predators; some ability to resist the killing effects of sunlight; some ability to join with others (even other species) to make a slime that resists drying to a limited extent; some ability to survive changes in temperature; cell walls that can resist some trauma from outside sources - and many other characteristics.
Put a few of your bacteria into a large container with a liquid that has the nutrients that it needs to grow and divide. Keep this at a constant room temperature and out of the light. After they have greatly multiplied to where most of the food is gone (a few days), collect a tiny droplet of them and place it into a second container of nutrients.
Take care not to contaminate your experiment. Do this over and over and after perhaps 50 times, your final batch of bacteria will have divided trillions of times. The results may surprise you; the DNA will have changed dramatically.
Sometimes, rarely, there is an error in the cell division process and a resultant bacterium will have a slightly different DNA. Most of the time, that mutation will kill the bacterium. But sometimes the change will make little difference to its survival and very rarely the mutation will aid in survival.
Since you have removed them from predators, sunlight, temperature extremes etc., mutation damage to sections of DNA that aid in its protection from those things may no longer be fatal. Sometimes the mutation may even eliminate some of those sections. Any strain of bacteria that can grow and divide more quickly because of its mutation would increase as a percentage of the population in a batch.
Within the few batches, that strain will far outnumber the rest. Your final container will have bacteria that are much quicker at multiplying and have serious problems with surviving outside your protected environment. When you test the DNA, you will find that the total sequence is quite different and likely distinctly shorter than the original.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.