Ankels

Ankels are a genus of bioluminescent, cave-dwelling fungi-like organisms found in temperate limestone caves. They form gelatinous, stalked fruiting bodies that glow faintly in blue-green light, a trait that persists even in darkness. Ankels are saprotrophic, breaking down organic debris such as leaf litter and detritus that accumulates in cave corridors.

Morphology and physiology: The fruiting bodies range from 0.5 to 4 cm tall, with slender stalks and bulbous caps. The surface is translucent and can appear pale amber. Bioluminescence is produced by a luciferin-luciferase–like system and serves as a light source for observing spore dispersal or for intra-species signaling in dark habitats. Reproduction occurs via spores released from the hymenial layer during periods of high humidity.

Taxonomy and naming: The genus Ankels was described in 2089 by mycologists from Cascadia Research Institute. The name derives from the curved, ankle-like angle of the mature fruiting bodies.

Distribution and habitat: Ankels have been reported in a handful of cave networks across temperate Western regions. They prefer humid, stable microclimates on limestone walls or detritus-rich floors and are rarely found in disturbed caves.

Ecology and conservation: As detritivores and primary decomposers in cave ecosystems, Ankels contribute to nutrient cycling and support microfauna. Their sensitivity to air quality and humidity makes them potential indicators of cave health; conservation of cave habitats is important for their persistence.