It slowly gets compressed so I guess you can say it moves slowly as the space gets compressed
Most fungi are multicellular organisms. They display two distinct morphological stages: the vegetative and reproductive. The vegetative stage consists of a tangle of slender thread-like structures called hyphae (singular, hypha), whereas the reproductive stage can be more conspicuous. The mass of hyphae is a mycelium
The other biologists and scientists thought his theories were bogus