One must admit that it is quite amusing to watch. Occasional tail-chasing that is not causing injury is definitely not something to worry about. It could be an indication that they may need more activity or brain games. For the most part, I am sure that it is just their silly antics to entertain us.
The next frequently asked question is why do dogs seem to love squeaky toys? You may find this one hard to believe of your loveable little pooch but it goes back long ago when their ancestors were predators. There is instant gratification from gnawing on that squeaker. They feel rewarded when that little squeak comes out, as if they caught their prey. An instinct to hunt and capture is strong.
Have you ever watched your dog turning in circles before settling down to sleep? We all, even as humans, have our little routines to get comfortable. It can be turning around in circles or sometimes scratching at his pillow like he is digging for treasure or even nuzzling his head into the side of the cushion. It is an instinctive trait inherited from their ancestors - wolves. As the story goes (all researched based) this circling is geared towards survival. He can turn around in the circle over and over to check out how safe he will be in that position from his predators or other threats like snakes or critters, rocks and branches just so that he may get a good night's rest. Even though our dogs have memory foam beds, they still have this instinct within them. He is just making himself comfortable.
The last question that pet owners ask is how do you stop a dog from barking? There are some reasons why your dog may bark excessively and there are some training tips to help curb the yapping.
Barking is one of the ways that dogs communicate with their immediate environment. Most of the time dogs bark out of fear, boredom, loneliness, or to seek your attention. They may also bark to defend their territory or as a form of greeting or play.
The most important thing is to be patient and consistent with your effort to stop the yapping. This means talking to your dog in a firm and calm voice. I starting holding my finger to my lips and making the "SHHHH" sound and calming saying, "No bark!" If I catch her before she gets herself all riled up, she will make eye contact with me and come to sit by me for a treat for being a good girl. This really does work. However, I believe that she knows if she barks, I will make the motions and sounds of no bark and she will get a treat. The trick is to never reward or pay attention to her when she does bark. Wait until she is quiet to reward her with any treat, praise, food or attention. She works well with hand motions so maybe in a few more months, either she will outgrow it and know that it is not good to be barking.