Scientists have discovered a new marine fungus that infects and kills toxic algae responsible for harmful blooms. The adaptable parasite may reveal an overlooked natural force that helps control algae and shape ocean ecosystems. Credit: Shutterstock Researchers at Yokohama National University in Japan have identified a previously unknown species of marine fungus capable of killing harmful algae that form toxic blooms. The organism, named Algophthora mediterranea , is a microscopic chytrid