It isn't an animal, a plant, or a fungus. The slime mold (Physarum polycephalum) is a strange, creeping, bloblike organism made up of one giant cell. Though it has no brain, it can learn from ...

Made up of just a single cell and lacking any brain, or even any neurons and connections for that matter, you wouldn’t think much of the humble slime mold. But these creatures seem to display quite ...