diet of arsenic instead of one of six elements considered essential for life - phosphorus in this case - "opening up the possibility that organisms could exist elsewhere in the universe or even here on Earth using biochemical powers we have not yet dared to dream about." Chemist and molecular biologist Dr. Gerald Joyce said,
"It's a really nice story about adaptability of our life form... ...It gives food for thought about what might be possible in another world."This successful substitution of phosphorus of course is sure to stimulate a "rush" to replace one of the five other chemical elements (C, O, N, H, S) "essential" for life...like the substitution of silicon for carbon...In Space nobody can hear you scream! I'm joking of course: there are reasons why this particular one probably wouldn't work (strength of molecular structures etc) but chemical swaps are not that uncommon, in fact I have dealt with a particular one (sulphur for selenium in yeasts) for years.