The Ten Thousand Things

Flidais, Irish Goddess of the Woodlands and wild things.

— SOURCE: A Witch Comes Walking

In 1909, the biologist Jakob von Uexküll noted that every animal exists in its own unique perceptual world — a smorgasbord of sights, smells, sounds and textures that it can sense but that other species might not. These stimuli defined what von Uexküll called the Umwelt — an animal’s bespoke sliver of reality. A tick’s Umwelt is limited to the touch of hair, the odor that emanates from…