Dogs have cognitive thinking and there brains are like two year old children and they can recognize themselves in mirrors as well as going into REM sleep. This has been a proven study showing that dogs have brain waves while they are sleeping this means that something is occurring in their brain like a dream for instance. Dogs have a great ability to think and can recognize shapes and things like think of your dog and how they recognizing cats versus rabbits or how they know different humans. Dogs are amazing!
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