Abstract
Jonas' philosophical biology is an attempt to overcome the dualism, i.e., the alienation between man and world, which characterizes both Gnostic thinking and the Heiddegerian existentialist approach that Jonas had applied in its interpretation. This dualism leads both approaches to despise or, at least, to neglect nature.Jonas' philosophical biology is intended to provide an insight into the phenomenon of life that is more than a mere reflection of scientific epistemology. Rather, it regards itself as a cognitively significant approach towards the living in its own right. At the same time, philosophical biology is not intended as an alternative to the scientific enterprise, but instead as a desirable and even necessary complement of it. In developing philosophical biology, Jonas additionally aims at securing a place for man in the order of the living that is more than just locating him somewhere in the order of primates.