As a consequence of the debate over the viability of neo-Lamarckism, in 1896 James Mark Baldwin, Henry Fairfield Osborne and C. Lloyd Morgan all independently proposed a mechanism where new learned behaviors could cause the evolution of new instincts and physical traits through natural selection without resort to the inheritance of acquired characteristics.
Como consecuencia do debate sobre a viabilidade do neolamarckismo, en 1896 James Mark Baldwin, Henry Fairfield Osborne e C. Lloyd Morgan independentemente propuxeron un mecanismo no que os novos comportamentos aprendidos podían causar a evolución de novos instintos e trazos físicos por medio de selección natural sen que interviñese a herdanza dos caracteres adquiridos.