I addressed this in https://news.ycombinator.com/item?id=18000854
https://www.psychologytoday.com/us/blog/the-human-beast/2017...
Dogs fail the mirror test.
They are certainly quite intelligent, but technically don't meet the criteria for self-awareness.
And the scent thing where they spend less time on their own scent, or don't mark over their own scent, is dissmissed as a reflexive action.
I'm no expert, so I don't want to make any strong assertions here. But it seems that only recently, alternative self-awareness testing procedures (to the "mirror test") have become acceptable by researchers. Now new tests will be designed, and there is a body of evidence to be gathered for each of those tests. I personally believe that, given that the defense of human exclusivity for cognitive features has been a running fight, self-awareness will eventually suffer a similar fate.
[Gat16] Cazzolla Gatti, Roberto. Self-consciousness: beyond the looking-glass and what dogs found there. Ethology Ecology & Evolution, 2016
[Hor17] Alexandra Horowitz. Smelling themselves: Dogs investigate their own odours longer when modified in an "olfactory mirror" test. Behavioural Processes, 2017
[Gal18] Gordon G. Gallup Jr. & James R. Anderson. The "olfactory mirror" and other recent attempts to demonstrate self-recognition in non-primate species. Behavioural Processes, 2018
[Gat18] https://robertocazzollagatti.com/2018/06/07/self-awareness-i... - 2018
I would like to know in what way you think they are a better model than animals.
Robotics and agent-based systems may provide some counterarguments. My original comment was more about explanatory reasoning for machine learning systems than about development paradigms or goals.