- Mar 2017
You did not answer my question did you see the change within the species. Were you there did anyone witness it. I am merely looking for observatable concrete evidence. Did you witness the change or more importantly did Darwin witness the change from primate to human.
The Krakatoa volcano erupted in 1883. I wasn't there, but I can prove that it happened. There is volcanic ash and other volcanic fallout distributed all over the world which can chemically be identified as part of that volcano. You don't have to witness something with your own two eyes to prove that it happened if you have evidence ... ESPECIALLY in the rocks.
Humans are subject to the evolutionary mechanism of mutation, STILL. Why don't we change to something else? Because many babies that would have died in the past live long enough to have children and pass on their "bad" genes. Modern medicine defeats natural selection. Why do you think the Danes are pale, and Africans in the interior are dark? They started out that way? It has been demonstrated multiple times that at one time all humans were dark, migrated from the African continent, and natural selection acted on random mutations to favor lighter skin in the northern races.
Again, while medicine defeats natural selection, mutations still occur at a statistically predictable rate:
Extra limbs, extra fingers, amount of hair
The BRCE mutation is carried by many Ashkenazi Jews, which tends to kill women with various cancers after their childbearing years
Sickle cell anemia is a genetic mutation causing various heart/blood problems, but it evolved on the African continent through natural selection because it gives some resistance to malaria
Thalassemia is a similar mutation, at one time present in all Mediterranean races ... again providing some resistance to malaria while causing blood problems.
Something like 20% of all human pregnancies are terminated by the mother's body because some chemical signals didn't match correctly (some of this is due to mutation).
The Pima Native Americans are one of the races/ethnicities that carry the "thrifty" gene ... evolved to a feast-or-famine environment, they turn every spare calorie into fat to carry them over periods of starvation (no longer a part of their culture, so the gene works against them making them "naturally" tend towards obesity).
Evolution is the only theory that explains all the evidence: not paper, not stuffy scholars harrumphing in cozy chairs ... evidence preserved in hard rocks. Evolution continues at this current time and can be observed in other species. Humans are the only animals that defeat evolution by using medical science.
There is a family of Mexican circus performers that all share an inherited gene mutation for being hairy ... all over ... it never stops growing. There's no advantage to it ... and one can argue that people are repulsed by it ... so natural selection filters it out.
This same mutation has appeared sporadically through history, indicating that some mutations may be random, but some are more likely to happen than others. This is not a "disease", it's an inheritable genetic mutation.
Jojo the Dog Faced Boy (Russian)
Lionel the Lion-Faced Man (USA)
T'ai Djin, Kung Fu Master (China)
Evolution is the best explanation of the past, and can be currently observed.
What would happen if modern medicine and others didn't step in to help the Pima's with their obesity? They would eventually die out from obesity related problems. This would be natural selection at work. An inherited trait that actually harms individuals would be filtered out of the world population. When they lived primitively in a resource scarce area, this exact trait is what let them survive when others did not.