When slime molds are in the plasmodial life stage (when they become macroscopic and "smart" according to the paper), it is not a collection of cells, but a sing

When slime molds are in the plasmodial life stage (when they become macroscopic and "smart" according to the paper), it is not a collection of cells, but a single cytoplasm sharing multiple nuclei, making it a technically single-celled organism. Of course, because it contains so many nuclei over such a large area, it ends up behaving like a multicellular colonial organism.