>"In 2020, scientists discovered a jellyfish-like parasite [common salmon parasite called Henneguya salminicola] that doesn't have a mitochondrial genome – the

>"In 2020, scientists discovered a jellyfish-like parasite [common salmon parasite called Henneguya salminicola] that doesn't have a mitochondrial genome – the first multicellular organism ever found with such an absence. That means it doesn't breathe; in fact, it lives its life completely free of oxygen dependency. [...] It's a cnidarian, belonging to the same phylum as corals, jellyfish, and anemones. Although the cysts it creates in the fish's flesh are unsightly, the parasites are not harmful, and will live with the salmon for its entire life cycle. Tucked away inside its host, the tiny cnidarian can survive quite hypoxic [oxygen deficient] conditions." This sounds like a very interesting candidate organism to bring to Mars in the future...