posted on Jan, 1 2008 @ 08:28 PM
i think your question is one of the, if the majkor reason people have problems believing evolution. They dont understand its workings, possibly
because its hard if not impossible to see working in ones lifetime. Before i attempt my sah and short explanation, im not at all an expert. It is not
in any way a choice. but merely a natural progression, natural selection if you will. Lets say that a deer is born with a mutation or some change in
genes making it smaller and weaker than the rest. It will be killed easier and sooner than others because it cant escape or defend it self against
prey so it doesnt pass on it genes. But lets another deer is born that for the same reason a change in genes makes it maybe only slightly larger and
stronger than the rest. It can better escape/defend itself from prey. It can compete better for mates and food and therefore has more young and passes
on its genes. over time these mutations can create entirely new species. If it helps imagine it with humans. If your bigger and stronger than other
humans, you can out compete them for food and mates and propigate more. The genes of you are now passed onto your children
Another key to understanding evolution is realizing that when people say mutation it just means a random change in genes, it doesnt have to be a
for me the best evidence is in a field that i cannot remember the name of, but that studies unborn babies of many species.
These studies show that human fetuses accutually have gill slits, and that many bird species have teeth buds as fetuses. This to me and many others
means that we still have some of the genetic information for things that distant ancestors had before evolving into humans. Although many say that
gill slits arent real, and im not enough of an expert to properly support of fight that claim. And now i remember the name for these features. They
are called vestigial organs/features. If you wikipedia r google them you can find many examples.