Priced at $40 USD, the Fire TV Stick is a bit more expensive than Google's $35 Chromecast, but $10 cheaper than the already-affordable Roku Streaming Stick âlike other typical set-top boxes, the standard Fire TV is available for $100.
The precise question was: Is a dog's mouth cleaner than a human's? The answer to that is no, too, and basically for the reasons you've already cited. As we all know, dogs aren't particularly fussy about where they put their tongues or what goes into their mouths.
As much as humans see the world as we are, dogs smell the world as it is -- and if it's stinky, they roll in it. This sharpened sense of smell in canines is a special instrument, and there has long been anecdotal evidence about dogs being able to smell diseases, particularly cancer.