Mosquitoes Beginning To Ignore DEET Repellent

Actually, humans are continuing to evolve. Only the selective pressures are different.

The traits that are now selected for are those that are suited for our human-altered world in which dangerous things have warning labels, not those traits that used to be wonderful 20,000 years ago on the savannah, but that's the whole point.

Similarly, those who you call "genetically weak" aren't. They might have been were genetically weak on the savannah when your support group consisted of 20 uneducated protohumans, but in a world filled with medicine and technology, they are perfectly fine, and better adapted than some schmuck who puts all his energy into making powerful immune systems to destroy smallpox viruses and guinea worms that no longer exist.

Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/_qY_9es-D-E/story01.htm

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