"Evolutionary fitness"—often measured by intelligence and health—became the new arbiter of morality.
Many thinkers began to view morality as an evolving product of biology rather than an absolute truth. From Darwin to Hitler: Evolutionary Ethics, Eug...
is a 2004 book by historian Richard Weikart that examines how Darwinian ideas influenced German ethics and the eventual rise of Nazi ideology. Core Thesis From Darwin to Hitler: Evolutionary Ethics, Eug...