Metadata
Author: WikiMatrix
Data
English[en]
Since he was a firm believer in Dollo's law, which states that evolution is not reversible, Heilmann could not accept that clavicles were lost in dinosaurs and re-evolved in birds.
Spanish[es]
Como él era un firme adepto de la Ley de Dollo, la que plantea que la evolución no es reversible, Heilmann no pudo aceptar que las clavículas se hubieran perdido en dinosaurios para re-evolucionar nuevamente en aves.