Type specimen of the slime mould Badhimia foliicola. Collected by Arthur Lister, together with his daughter Guillerma. Arthur Lister is the author of the book: A monograph of the Mycetozoa: a ...

A form of spatial memory helps a brainless slime mold navigate complex environments, hinting at the possible origins of memory in higher organisms. Jef Akst was managing editor of The Scientist, where ...