As Halloween approaches, some ghosts and ghouls could be coming out to play, and your pet would probably be the first to notice it. While it can’t be proven by science, some believe that animals have a sixth sense which allows them to see the paranormal, and an expert has shared some signs your dog or cat is one of them. 5 signs your dog or cat could have seen a ghostAnimal Wellbeing Specialist Catrin George says there is some strange behavior to watch out for that could hint at an extra presence in your home. “Some people believe that animals having a sixth sense is an old wives tale, some be…