I could say so many things about this, but I'll just say that this was bad. Really, really bad.
There were a few minutes around 8:30 that seemed unnecessary where he (the "old guy") just answered bad questions with silly stories & the whole documentary just stopped. Don't get your panties in a bunch if you're a fan of this guy, I'm not hating on him, I just don't like his style. He seemed condescending at times, like when he was talking to the African herder, & the rest of the time I just thought he was crazy or getting old. The information wasn't anything too shocking as well.
For an alternative documentary on dogs, (that isn't so strange!) I recommend Nova's Dogs Decoded. It's a lot more interesting, & they interview some pretty amazing people. (My favorite in Nova's documentary was a woman who has been raising foxes for the past 50 years & selectively breeding only the tamest ones to transform them into sweet little puppies. Her work is amazing.) Anyway, do yourself a favor & go watch it on Netflix, you can stream the dang thing, & not have to watch this silly crap.