My question is can dogs see ghosts or spirits. I have a 4 months old German Shepherd I am noticing that from when I adopted him 4th July 2k17 I have no bad dreams like fighting,killing,blood related where one can be totally frightened. The day when he came in my house Everything everything immediately stopped appearing in my dream and it's normal from the till now. But the main Problem for which I'm concerned is like Every night between 11:30 to 12:30 he looks at window and door and keep looking at it and the. He suddenly barks so loud even he is just 4 months old. He looks repeatedly so fast on window then on wall then air-conditioning then back to wall. Sometimes keep on staring on wall and barks so loud like he is saying to leave the house to someone and then he just jump to my bed to me. Is it a paranormal activity going on? Had watched on YouTube that may be dogs can see ghosts and spirits but no one is sure.