Throughout his writings, Heidegger's view of animals is ostensibly anthropocentric, defining them as deficient in relation to human beings. His most extensive analysis of animality, found in the 1929-1930 lecture course entitled The Fundamental Concepts of Metaphysics, seems to be a clear example of this anthropocentrism, defining the animal as poor in world in opposition to the human being's world-forming character. Nevertheless, Heidegger is explicitly ambivalent regarding the anthropocentric implications of this conception of animality. This paper examines Heidegger's articulation of the notion of world-poverty as a distinct form of negativity, its implications for the question concerning Heidegger's anthropocentrism, as well as his ambivalence with regard to this question.