My discovery of this link was sort of similar to what's shown in this short video on Facebook of a slime mold finding food: https://www.facebook.com/video.php?v=1160895407374821 In case the facebook link doesn't work, the FB page that linked to it also had a link to a Scientific American page with short video that includes a similar demo and an interesting statement about slime molds mapping the major rail systems of several major cities and countries: How Brainless Slime Molds Redefine Intelligence [Video]
Thank you for sharing this Wendy! I'm now noticing that if anything the amount of research on the motility/problem solving of this slime mold has expanded over the past several years.