Accidental killing of Martians?

NASA's theories concerning life on Mars have come along way since the Viking space probes that first spent time looking for life on the Red Planet in 1976-77. Mounting evidence all put proves that water once flowed there, a key component to life as we know it. There's even a scientist who speculates that we may have actually discovered life on Mars 30 years ago, but accidentally killed it. He says that the problem is that we have been looking for life as it evolved on Earth, not as it may have evolved in the atmosphere of Mars. He believes that life there most likely evolved with the key internal fluid consisting of a mix of water and hydrogen peroxide. Water-hydrogen peroxide mix stays liquid at very low temperatures, or -68 degrees Fahrenheit, and doesn't destroy cells when it freezes. "This kind of adaptation makes sense from a biochemical viewpoint," he said. He also said that the Viking experiments of the 1970s wouldn't have noticed hydrogen peroxide-based life and, in fact, would have killed it. One Viking experiment seeking life on Mars poured water on soil. That would have essentially drowned hydrogen peroxide-based life. Another experiment heated the soil to see if something would happen. That would have baked Martian microbes according to the scientist.