As of last week, I had my 13 year old leonberger mix, ~15 year old beagle (wife's), and my 8 black and tan coonhound. Well the beagle wasn't eating anymore, which is pretty big thing for a beagle to not eat. She'd usually be at the door barking for food at sun up. Then my 13 year old stopped eating. Not completely, but very little. Whale, we had to put down the beagle as she was having seizures and in a very bad spot in general. A couple of days later, my 13 year old starts eating again. I guess she was doing it because she felt something change with the beagle, and they've always been best buddies.