Scientists have discovered a sugar compound from deep-sea bacteria that can destroy cancer cells in a dramatic way. This natural substance, produced by microbes living in the ocean, causes cancer cells to undergo a fiery form of cell death, essentially making them self-destruct. In lab tests and in mice with liver cancer, the compound not only stopped tumors from growing, but also activated the immune system to fight back. This finding could pave the way for entirely new cancer treatments based on sugars from marine organisms.