Well you have people that are ignorant against anything that is not of their "world." And these people come in all sizes and flavors. They can even be geologists, astronauts, military agents, the highest regarded skeptics of ufology, and anyone else in particular.

There is a philosophical practice or state of being that insures you are not one of these people.

You must not allow your envy and pride control your thoughts. Envy in desiring the traits or knowledge of others. Pride in being so confounded in your own knowledge and beliefs to not accept change. Fear is also a great factor that takes part in hindering intellectual thought.

To not be controlled by envy you must concentrate entirely on that which most matters with you, such as everyday life. To not be controlled by pride you must accept the possibility that you might be wrong, regardless of what you are talking about. To not be controlled by fear, you must not show fear or restraint in thought.

Those that tell you it's okay to be a little bit skeptical, but not too much are those that have achieve a fair enough portion of this state of psychological being.

Not everything we regard as a fact is actually a fact. Evidence and information that is gathered is always open to speculation and interpretation.

I sense a great deal of hostility from your tone. It would be better if you took the time to understand these people before criticizing them. After all everyone had a reason for why they are skeptical or confounded by information.

Generally it's due to pride, envy, and fear.

Well I certainly am not against the concept of evolution. And I do regard it is a fact, because I took the time to understanding it.

Most people here take evolution as a fact, clearly for some sort of reason outside of intellectual understandability.

Contrary to such, I understand evolution quite literally due to my great understanding of chromosomes and how they are effected by cosmic rays and the environment.

A change in diet over a long period of time can alter your genetics enough to possibly create a mutation in your offspring. If this trait is benefitial it will carry on into the next generation. And after many of such changes take place over a course of many many years, you may see a new species or race in the population. But this of course depends on the lifespan of the creature and the rate in which mutation oftenly occurs within such an organism.