Much to their owners’ dismay, dogs are attracted to dead animals. Not only will a dog roll around in a spot where their owner has just killed a bug, but they will also actually roll in dead animals. Bugs, worms, rats, birds, or an unknown dead animal – dogs have an unexplained fascinating for all dead animals. Here’s why.
Animal behavior specialists say dogs roll in dead animals for a couple of reasons. One is scent marking. When your dog rolls in dead animals - guts, goo and all - she is simply depositing her own scent on the carcass. This is your dog’s way of telling other animals, I’ve been here and I’ve claimed this dead animal. It’s her way of keeping scavengers away and also showing off the prey to other dogs.
The other reason dogs roll in dead animals is to hide their own scent. This behavior harks back to the days when dogs were wild animals who had to hunt for their food. Masking their own scent allowed them to approach dinner without being detected.
Smell is a vital sense for dogs, much more so than humans. Dogs like to roll in stinky stuff, and this includes dead animals, because they want to hide their smell. In modern-day pet dogs, it is instinctual behavior. In ancient times, wild dogs used to roll in poop and other stinky stuff so they could sneak up on prey undetected.
Besides scent marking and scent masking, another reason why dogs roll on roadkill, dead animals, and other stinky stuff is that they actually like the smell. Many smells that are gross to humans are actually interesting or appealing to dogs.
Rolling in dead animals is not a behavior you should encourage or ignore. There are many potentially dangerous bacteria in animal carcasses that can make your dog very sick. For example, your dog can pick up bacteria called Clostridium botulinum from a dead animal that is neurotoxic. In general, it’s a good idea to educate yourself about some common neurotoxins in dogs, so you can keep your pooch safe at home and outdoors.
Sometimes, even the most highly trained and best-behaved dogs will dive-bomb an animal carcass before you have time to say “Leave it!” If your dog rolls in a dead animal, here’s what you should do:
Here are some quick tips on preventing your dog from rolling in dead animals: