Dog on wheels

A couple of times recently I have seen woman taking her dog for a walk in a local park. This is not unusual. A lot of people take their dogs for walks. What is unusual about this dog is that it has four legs and two wheels.


When the dog runs, its back legs run, too, only the back feet don't quite touch the ground. They brush the ground sometimes, but there is no weight on them.

The dog doesn't seem to notice this. The dog apparently thinks everything is working just fine.

And so it is.