In a world first, a team of Tel Aviv scientists discovered an animal that does not require oxygen to survive, effectively putting Mrs Nerg back in her box. The paper published in PNAS describes a jellyfish-like parasite that is the first known multicellular organism without a mitochondrial genome, which means it can survive without oxygen. Science advances are constantly … [Read more...] about The First Known Animal That Does Not Require Breathing Has Been Discovered Inside Salmon