My mothers' Yorkshire Terrier was barking like mad one night and scratching the wall that led to the next door neighbor's house. The next day, said neighbor was found dead due to a heart attack or some other bodily cause...weird. I've heard of a few of these kind of situations.
It's been said that dogs can smell cancer too. There was this woman who had weird moles on her leg that the dog kept sniffing; she got 'em checked out and it turns out it was skin cancer.
For those who believe in the metaphysical, this is an easy call but for someone like myself, I tend to side with the scientific approach of chemical release and sensory organs. Check out these senses that various bugs and animals have: http://faculty.washi...dler/amaze.html
Edited by Sean93, 12 January 2013 - 10:16 PM.