Have you ever noticed that when people take a dog on a walk, the dog usually gets really interested in any poop it finds from other dogs? A dog will nearly always stop and sniff with great seriousness, as though the poop contains important information.
It’s as though there is a secret language, transmitted by smell, which only dogs know. A way for them to communicate which seems useless to anyone else, but is apparently of great importance to them.
So maybe smelling poop is how dogs gossip.
Or it could be the other way around. Maybe when we humans gossip, it’s our way of leaving poop for other people to find.