The Biological Problem Of Today

Focusing on the debate between preformation and epigenesis, the book presents Oscar Hertwig's defense of epigenesis, which posits that organisms develop through gradual differentiation rather than from pre-existing structures. Hertwig supports his arguments with evidence and introduces a new theory of organic development rooted in epigenesis. This influential work, written in an accessible style, bridges the gap between scientific and general audiences, making it a significant contribution to developmental biology that remains relevant today.