Kewlin’. We (Earth life) are either WAY COOLER than we thought, and able to ‘evolve’ in REALLY radical ways to create LIFE ~ OR~ Alien bacteria, off Earth in source, has been found living happily on Earth, adapting to our environment. Like I said, Kewlin’!!
HotAir has it:
…One: The bacteria is a true alien life form that’s capable of swapping out “essential” elements for whatever’s abundant in its environment. In that case, where’d it come from and how’d it get there? Two: The bacteria’s an Earth-based life form that somehow figured out one of the niftiest tricks in evolutionary history, altering the core structure of its own DNA to compensate for the loss of a key component. As an astrobiologist told the Times, “It’s like if you or I morphed into fully functioning cyborgs after being thrown into a room of electronic scrap with nothing to eat.” If it’s evolution at work, is it a new branch on the tree or … a whole new tree? And how many more branches are there on that tree? Read WaPo’s very user-friendly article on all this, suggesting the possibility of an entire “shadow biosphere” on Earth that doesn’t follow the usual biological rules….