Jakob von Uexküll's theories of life -- Biography and historical background -- Nature's conformity with plan -- Umweltforschung -- Biosemiotics -- Concluding remarks -- Marking a path into the environments of animals -- The essential approach to the organism -- Heidegger and the biologists -- Paths to the world -- Disruptive behavior : Heidegger and the captivated animal -- The worldless stone -- The poor animal -- For example, three bees and a lark -- Animal morphology -- A shocking wealth (...) -- A fine line in the rupture of time -- An affected body -- The theme of the animal melody : Merleau-Ponty and the umwelt -- The structure of behavior -- A pure wake, a quiet force -- A leaf of being -- Interanimality -- The-animal-stalks-at-five-oclock : Deleuze's affection for Uexküll -- Problematic organisms -- Uexküll's ethology of affects -- The body without organs, the embryonic egg, and prebiotic soup -- Nature's refrain sung across milieus and territories -- The animal stalks. (shrink)