There is a huge gap between Homo erectus, a human race, and the apes that preceded Homo erectus in the "human evolution" scenario, (Australopithecus, Homo Habilis, and Homo rudolfensis). Admitting this fact is totally against the dogmatic philosophy and ideology of evolutionists. As a result, they try to portray Homo erectus, a truly human race, as a half-ape creature. In their Homo erectus reconstructions, they tenaciously draw simian features. On the other hand, with similar drawing methods, they humanise apes like Australopithecus or Homo Habilis. With this method, they seek to "approximate" apes and human beings and close the gap between these two distinct living classes.
The designer, however, is confined to increasingly smaller gaps. And more of them, since each new fossil find creates two new gaps.