I once found three dead black bears in the Mississippi River, it was a mother with two cubs. But then there was worst flooding year back so the bears were probably drowned in their own den then got carried by currents. It scared me lots and I don't go there that spot any more. When we went to tubing down the river, I feel a bump on my bottom thought it was just log but when I looked down and found out that the bump was just a dead deer. I was so quiet whole trip.....creepy! But no dogs or cats....expect I once found a body of little kid. Poor kid it turn out that he was actually play seek and hide with his babysitter, thought the boat make a nice hide spot but he fell and hit his head on the dock.
Wow. I don't know how I would react to finding a dead person, especially a child. I think that would give me nightmares.