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Originally Posted by Sowa
Ok well than getting cancer would work. Geez... it doesn't matter as that wasn't the main thrust of the argument.
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Fair enough. However, when you kill the deer, you aren't killing it for the main purpose of reducing the harm that it may face tomorrow. You are killing it so that you can make use of it (i.e. consume it). If you're killing a person as a mercy killing...well, again, that's different. It's a whole different argument completely.
Quote:
Originally Posted by Sowa
If the ability to digest and cut meat with our teeth no longer became necessary the species would no longer preserve that gene as it is no longer useful. Although I can admit I am not that knowledgeable about evolution so that might be wrong.
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Unfortunatly, this is incorrect in terms of evolution. Species do not lose genes because of disuse. Genes disappear typically because they hinder an animals ability to survive and reproduce. Disuse will not cause a change in DNA and therefore will not change the human species.
Edit: Just to add...humans dont' "preserve" genes. DNA is what decides EVERYTHING about us. We have no control over what it looks like, how it operates, nor do we have the ability to change it (yet). If everyone stopped using their legs and travelled only in wheelchairs, the human species would not evolve to a legless creature.