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.
Para kritikus neo-Lamarckisme, seperti pakar biologi Jerman August Weismann dan Alfred Russel Wallace, menekankan bahwa tak ada orang yang pernah memproduksi bukti solid untuk pewarisan karakteristik menonjol.