What if DreamWorks Pictures/DreamWorks Animation was founded in 1934?/Dawn of Mammals

Dawn of Mammals is a 1959 American animated documentary film produced by DW Cartoon Department. The film consists no dialogue, except the narration by Theodore Von Eltz (who narrates the 1956‘s The Animal World), throughout, which revolves the actual life and extinction of the ancient mammals, birds and men, during the Cenozoic Era. The film was also experiment its animation in the art form of realism to signify the dramatic nature story.