See also this article about Kanzi the chimp making stone tools. Part of the issue is how sophisticated the tool has to be before you call it a manufactured tool.
Meanwhile, the Creationists are still not explaining why there are no modern mammals or humans in the same geologic layers where we find dinosaurs, if we were all created in the same week.
BTW. it is obvious that neither the author of the YEC website article nor the poster of this thread (if they are not one and the same) knows the difference between a blade and a biface.