Scientists speculate that mold can learn by creating pathways to transfer fluid.
The result? Through studies like this, as Alim recounts in the Annual Review of Condensed Matter Physics, she has become convinced that the flow of fluid can be a way of transmitting information, and she’s working to understand the underlying mechanisms. Other researchers, meanwhile, are continuing to uncover new, intriguing behaviors in Physarum, a creature that appears able to learn, remember and make decisions — all without a brain.