The Tiger

by John Vaillant

IN 1909, AN ESTONIAN-BORN BARON-TURNED-PHYSIOLOGIST NAMED Jakob von Uexküll introduced the concept of Umwelt to the world. Uexküll is considered one of the fathers of ethology, which is also known as behavioral ecology. It is a young discipline whose goal is to study behavior and social organization through a biological lens. “To do so,” wrote Uexküll in “A Stroll Through the Worlds of Animals and Men,” “we must first blow, in fancy, a soap bubble around each creature to represent its own world, filled with the perceptions which it alone knows. When we ourselves then step into one of these bubbles, the familiar … is transformed.”4 Uexküll called this bubble the umwelt, a German word that he applied to a given animal’s subjective or “self-centered” world. An individual’s umwelt exists side by side with the Umgebung—the term Uexküll used to describe the objective environment, a place that exists in theory but that none of us can truly know given the inherent limitations of our respective umwelten. In addition to being delightful words to say, umwelt and umgebung offer a framework for exploring and describing the experience of other creatures.