While on a related article on Nature — @ http://www.nature.com/news/lym... — it has been shown that Borrelia burgdorferi, the bacterium that causes Lyme disease, shows that the capacity to evolve can itself be the target of natural selection
The oldest evidence of Lyme disease dates back 5,300 years, to an ice mummy discovered to contain Borrelia’s genetic material, but the condition’s evolutionary origins are unknown. Lyme disease is only one of a number of human afflictions caused by spirochetes, however, so even if that condition arose more recently, our problems with spirochetes likely date back much further. When Homo sapiens arrived on the scene around 200,000 years ago, the researcher thinks, the ticks — and their spirochetes — were probably waiting “As long as humans have been around,” he says, “I’m sure that they suffered from ailments caused by spirochetes carried by ticks”
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How is do? I think Slashdot borken.
You knew the job was dangerous when you took it, Fred. -- Superchicken