Those are definitely dog or some other canine tracks.
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Deer coming into my treestand, a big non-typical. Setup is perfect. I draw back, take aim, and the pin settles perfectly on it's chest.....My thumb hits the release, arrow glides noiselessly toward it's target............then I woke up.....dang, another day of classes *sigh*
I also think that cougers walk\stride isdifferent too. I mean their one paw is allot closer to the rear on the opposite side. Again I am not an expert so I stand corrected if wrong.