Scientists discover first animal that doesn’t breathe oxygen

Scientists at the Tel Aviv University in Israel have discovered the first animal that doesn’t need oxygen to live. The less than 10-celled parasite Henneguya Salminicola, a jellyfish-like parasite, lives within the stomach of a salmon. As it evolved, the animal, a myxozoan relative of jellyfish and corals, gave up breathing and consuming oxygen to produce energy.