NASA discovers unique new life form

Oh look, DNA uses phosphate groups. Arsenic is a nonmetal in the same group. It just makes the same molocules. The difference between AsO4 and PO4 is the AsO4 has stronger bonds, making the Os more negative, making it interact more strongly with other molocules. As I said, maybe in this bacteria it doesn't matter that Arsenic has stronger bonds. but there's a reason why it's poisonous to humans.

But it is not an example of evolution because the phosphate groups in question are the ones responsible for the phosphate-sugar covalent bond that forms the backbone to the DNA molecule. Evolution requires a DNA molecule in order to inflict change. It is assumed that DeoxyriboNucleic Acid contains three core elements: (1) deoxyribose sugar, phosphate head, and nucleic base. This assumption has driven the basic molecular biological assumption behind evolution.