Abstract

In this paper I outline Hans Jonas’s thesis of the “existential” character of biological life and compare it with statements made by the early Heidegger concerning the essential enworldedness of all living beings. I then critically examine this thesis in the light of Heidegger’s own later refutation of his views and consequent reversal of his former position on life. I argue that while both thinkers are correct to attribute a radical openness to organic life as such, Heidegger is correct is restricting the existential dimension to specifically human life given certain logical constraints built into the concept of existence itself