Ontogeny and Phylogeny

¿Ontogeny recapitulates phylogeny¿ was Haeckel¿s answer to 19th-century biology¿s most vexing question: what is the relationship between individual development and the evolution of species and lineages? Gould documents the history of the idea of recapitulation from its first appearance among the pre-Socratics to its fall in the early 20th century.