Do I believe in them, I cant rightly say. However I dont deny the possibility of the existence of them all. Especially Aliens, however will they all be the humanoid species as we are told on Star Trek who knows, they could be something that cant even be grasped by our minds as far as form or they may even be stupider than we are.

As far as ghosts goes, I have had a few times where I was convinced that there was some spiriual force at work, things moving from place to place in a house in which I was the only occupant and hadnt moved it, now in retrospect there could have been a logical explanation that I just didnt think of.

Big Foot, Lochie, the Yeti et al, can probably be chalked up to over imaginative shysters but its not unlikey that there are species of some sort that humans have not yet had intimate contact and perhaps purposely as a survival mechanism for that species, look how many species that have becoma extinct as a result of contact with man.

Again all of the above may be possible but to truly believe I need more than a picture on the supermarket tabloid rack.