A sequence from the upcoming movie, Fungi: Web of Life, in which Björk explains how fungi decompose wood.

Fungi are metabolic wizards, but of their many chemical achievements, one of the most impressive is the ability of certain fungi to break down the lignin in wood. These fungi have forever changed the way that carbon journeys through its earthly cycles.

Timelapse footage of decomposition is by Steven Axford (Planet Fungi). Note the slime moulds shooting across the scene like yellow lightning.