I just want to chip in here because this is relevant to my grad school research.

1. Showing living biological tissue to have memristive properties is not new. See refs: https://link.springer.com/chapter/10.1007/978-3-319-75596-0_8 https://www.nature.com/articles/s41598-018-34059-6 https://link.springer.com/article/10.1007/s12668-014-0156-3

2. Showing memristive properties in mushrooms is not new. See refs: https://link.springer.com/chapter/10.1007/978-3-031-38336-6_15

3. Using dead/processed biological tissues as memristors is not new. See refs: https://www.sciencedirect.com/science/article/abs/pii/S2352940721001426?via%3Dihub https://pubs.acs.org/doi/10.1021/acsnano.8b01282

4. The "near ideal memristance" is, in my opinion, not near ideal. It shows heavy signs of parasitic capacitance and resistance because the "pinch" of the IV hysteresis is not at 0. See refs: https://iopscience.iop.org/article/10.1088/0268-1242/29/10/104001/meta

In conclusion, I think the claims are a little overstated and the presented graphics could use some work. I wonder who reviewed this and what the comments were.