Animals: Ghosts are mostly found on animals. They rarely exist inside
animals; however they do so when they want to trouble mankind through
controlling them. The possessed animal would become wild and attack
humans thus causing distress to them.
Some animals and birds are more sensitive to the presence of ghosts
such as dogs, horses, owls and crows. When dogs are found barking or
howling suddenly in the night without any apparent reason, it could be
because they sense the presence of ghosts.
The scientific information is given in below link.
http://www.spiritualresearchfoundation.org/spiritualresearch/difficulties/Ghosts_Demons/wheredoghost***ist.phphttp://groups.google.com/group/alt.pets.parrots.african-grey/post
