A newly discovered fungus, Gibellula attenboroughii, infects cave spiders in Britain and Ireland, altering their behavior by forcing them to leave their webs and move to exposed areas, which helps the fungus spread its spores more effectively. This phenomenon mirrors the well-known "zombie ant fungi" but occurs in cooler cave environments rather than tropical regions. Scientists observed other fungi growing on top of G. attenboroughii, indicating a complex web of parasitic interactions. This discovery challenges previous assumptions about fungal manipulation and highlights the intricate ecological relationships within cave ecosystems.