If it is evolution where are all the animals that are still evolving ?
there are only specific set breeds.

Did a group of horses start to "change" into giraffes at one set time, and none others did prior or since then ? There should be groups of 1/2 giraffes, and 3/4 ones, and 1 1/4 giraffes.
The same as "whatever" evolved into hippos ?  And leopards.
Not to mention my turtle. 

According to the theory of natural selection (and by implication eugenics), genetic diversity is the key to a strong, healthy population. This means ethnic diversity, not misguided notions of 'racial purity.' From a genetic perspective, race mixing is a good thing.

The European royal families mistook the inevitable result of their wealth, education, better food and better health care for inherent (ie genetic) superiority. So they only bred with other 'aristocrats.' The result was a weaker genetic makeup and diseases caused by inbreeding.

http://www.smh.com.au/news/World/Scientists-discover-purpose-of-appendix/2007/10/07/1191695716359.html

Some scientists think they have figured out the real job of the troublesome and seemingly useless appendix: It produces and protects good germs for the gut.

The function of the appendix seems related to the massive amount of bacteria that populates the human digestive system, according to the study in the Journal of Theoretical Biology. More bacteria inhabit the typical body than human cells. Most of the bacteria are good and help digest food.

But sometimes the flora of bacteria in the intestines die or are purged. Diseases such as cholera or amoebic dysentery would clear the gut of useful bacteria. The appendix's job is to reboot the digestive system in that case.

That use is not needed in a modern industrialised society, Parker said.

If the gut flora dies, they usually can be repopulated easily with germs picked up from other people, he said.

But before dense populations in modern times and during epidemics of cholera that affected a whole region, it was not as easy to grow back that bacteria, and the appendix came in handy.

In less developed countries, where the appendix may be still useful, the rate of appendicitis is lower than in the United States, other studies have shown, Parker said.

The appendix, which is about six to 10 centimetres long, may be another case of an overly hygienic society triggering an overreaction by the body's immune system, he said.

Even though the appendix seems to have a function, people should still have them removed when they are inflamed because it could turn deadly, Parker said.

About 300 to 400 Americans die of appendicitis each year, according to the CDC.

Five scientists not connected with the research said that the Duke theory makes sense and raises interesting questions.

Welcome to OzPolitic Darwin.

Quote:


That would falsify the theory of natural selection. This is about evolution.

Giraffe has full range already.

muso wrote on Nov 26^th, 2008 at 2:06pm:


Yes, I agree it is like like apples vs fruits or rather like data vs process vs storage vs entities in system analyses.

Classic Liberal wrote on Nov 26^th, 2008 at 1:27pm:

Do you have any idea of geologic time? But animals have evolved due to our exitence:

A moth in England was light colored but had a recessive gene for dark color. Two recessive gene carriers mated some of their offspring would be dark colored, easy to spot against light colored tree bark by predatory birds. However, as the Industrial Revolution spread and pollution started to cover trees etc the dark moths now were safer than their light colored siblings. Now, the dark gene is the dominant, not the recessive gene.

If antibiotics are injected into a patient or an insectide is sprayed most bacteria/insects die. But a few have a recessive gene that copes with that agent, these then breed and voila we have superbugs immune to our sprays and stuff.

And that is how evolution works. genetic variation, acted on by natural selection. Those that are successful will be passed on, over geologic time (without out meddling) that is how new species evolve.

And you are an idiot freediver, did not get my point at all! What was a recessive gene is now the dominant, much more important than a sport like a redhead with no redheaded ancestors.

Mutation is not really needed to explain evolution. Genetic variability and natural selection are enough.