This is one of the craziest stories I've ran across in a very long time.
Fascinating!
I always loved slime molds ever since I found a bright pink one in the woods years ago. There are I am told many different slime molds, not all of which are related to one another. Some can live as separate parts, which can then come together to form one organism when they want to reproduce and make spores.
Learning, obviously , depends on a central nervous system, life is amazing!