" Fungi are equipped with different kinds of bodies. They don’t have noses or brains. Instead, their entire surface behaves like an olfactory epithelium. A mycelial network is one large chemically sensitive membrane: A molecule can bind to a receptor anywhere on its surface and trigger a signaling cascade that alters fungal behavior. "

― Merlin Sheldrake , Entangled Life: How Fungi Make Our Worlds, Change Our Minds & Shape Our Futures