Critics of neo-Lamarckism, such as the German biologist August Weismann and Alfred Russel Wallace, pointed out that no one had ever produced solid evidence for the inheritance of acquired characteristics.
Os críticos do neolamarckismo, como o biólogo alemán August Weismann e Alfred Russel Wallace, sinalaron que ninguén presentara nunca evidencias sólidas da herdanza dos caracteres adquiridcos.