What ghostly animals have been sighted?

Yes, animal spirits do exsist too. I had a German Shepherd once that use to always scratch at the back door when he wanted in at night before we all went to bed. After he died, one night I heard the scratching at the back door just like he use to when he wanted in. That only happened once, but I know it was him. I also felt a cat jump on my back at night when I was sleeping. My cat was no where near me at the time. I thought it was him, but it wasnt. That really freaked me out! My best friend's Doberman died last year, and the night after she buried her, she saw a black streak going across her back yard, just looked like her dog when she use to be running back there. After that, she never saw it since. Oh yes, animal spirits do exist! If you can see dogs and cats, why not other species??