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Why Do Dogs Eat Poop? A Look at Coprophagia

I love my dog. She cracks me up. She will do the funniest things. She digs when I am gardening; I think she wants to help! She even has brought me a dead animal as a present. But when I saw her eating poop, I was disgusted! Why, why, why? I didn’t understand. Why would my “best friend” do something so repulsive? We would like to think of our pets as humans, but dogs will be dogs and will continue to exhibit dog behavior, no matter how domesticated they are. Why would any animal eat feces? Dogs are misunderstood on so many levels. In fact, in the town where I live, working ranch dogs have been shot for eating poop. This poop-eating behavior is actually very common in the animal kingdom. There are many reasons why dogs or other animals eat a piece or two of poo. Let’s take a look at why.

The act of eating poop is so common that there is an actual word for it: coprophagia. For example, the dung beetle’s primary nutritional source is feces. Elephants, giant pandas, guinea pigs, and hippos are a few other species that consume this treat from time to time. Surprisingly, poop can offer a good source of nutrients. Rabbit poop is rich in enzymatic nutrients and vitamin B. An animal lacking certain digestive enzymes can have an urgent need to engage in coprophagia, especially if it has pancreatic insufficiencies. Malnutrition from a poor diet leaves a dog hungry and searching for proper nutrients. Surgeries involving the gut with the removal of intestines can lead to a lack of nutrients being absorbed, which can cause malabsorption and coprophagia.

Poop-eating behavior also has evolved as a protective mechanism, ensuring the pack’s survival. A designated pack member will hide the scent of a weak or sick animal by eating its excrement, eliminating any smells of weakness. Predators seek out easy prey such as the young. A lactating mother and her newborn pups are prime targets. Milk by-products in the puppies’ feces are a powerful and attractive smell to predators. Dogs eat poop as a means of keeping their newborns safe and clean.

A bitch instinctively will clean her pups during the birthing process. She eats the remnants of birth and will lick the newborn’s anus to stimulate the bowel process. This keeps the den free from disease. This process will go on for four to five weeks after birth. In some cases, a brood bitch (a female dog kept for breeding purposes) will continue this process throughout her life, regardless of how old the puppies are. Some females will ritualize this habit whether there are puppies or not.

Some dogs love to eat the little delicacy known as kitty roca. Cat poop in the litter box is extremely dangerous to dogs. Manufacturers say it is nontoxic for cats, but they don’t put a warning label on the box about consumption by dogs. Herein lies the problem: the cat litter molecules (or clay) are absorbent, soaking up water. When the kitty roca is swallowed, the dog’s intestines, mostly liquid, will combine with the cat litter to form a cement-like substance. The hard blob subsequently will stop any normal passage of feces, blocking the flow of digestion. This bad case of constipation wreaks havoc on a dog. Your dog can suffer many gastrointestinal symptoms such as gastric pain, belly bloating, nausea, vomiting, and more. If your dog eats enough kitty roca, its intestines can rupture due to the swelling.

Keep in mind that your dog can become ill from eating poop because it can carry parasites such as giardia and Coccidia. If it sits around for a few weeks, roundworm and whipworm have been known to populate poop. Herbivore feces from deer, goats, rabbits, and so on cannot transmit parasites to carnivores such as dogs, bears, and wolves. Interestingly, parasites are specific to the host they are carried in. Therefore, carnivores can be infected only by eating other carnivores’ poop! It’s a vicious cycle: the dog eats poop infected with parasites; the parasites gobble up the nutrients for fuel, leaving the dog hungry; and then the dog looks for more food, only to eat poop again. Getting your dog tested yearly for parasites can be a lifesaver.

Dogs eating poop may have developed as part of their evolution or for nutritional purposes; in addition, there are behavioral reasons. Allelomimetic behavior is the act of doing the same as others—basically copying a behavior. Some dogs might copy this eating habit, thinking it’s a good thing to do. Submissive dogs will eat the poop of a more dominant dog. This occurs when there are multiple dogs living in the same house. A stressed, nervous, or anxious dog will be driven to unwanted, odd behaviors. You’ll see this behavior in dogs that are confined to a kennel or chained up. They might indulge in excrement if they are bored, lonely, or neglected. If your dog is young, it might be exploring its world. Some dogs like the taste, which is very comparable to their warm, moist food as pups.

Dogs love things that taste and smell terrible to us. You might say some dogs have a sort of “refined taste.” We may not understand why dogs want to eat poo, but they do.

pineapple with slices

Just a side note: if you have a dog that eats its own poop, you can try feeding it pineapple. Half a chunk or one teaspoon will suffice. Pineapple contains the digestive enzyme bromelain. This chemical acts as a meat tenderizer. Some dogs have been known to be put off by the taste of pineapple in their own poop. It tastes good when it goes in but bad after it comes out!



Is onion bad for dogs?

We all feed our dog table scraps and human treats and we know we shouldn’t. It’s so hard to resist that lovable face pleading for you to share your goodies. Most pet owners know of the harms of chocolate, but many other foods can cause harm to one’s precious pooch. There is growing concern in the dog community about which foods are harmful, and how much damage a given food can cause. After talking to my friends about what foods are bad for dogs, we all came to the same realization – that we didn’t know how bad onions are for our dogs. This article primarily looks at The Not-So-Innocent Onion and other members of the Allium family. After reading this article, I hope you will have a better understanding of how badly these little delights affect our dogs.

Now you’re thinking, why would my dog eat onions? The answer is, dogs will take anything you give to them as long as it smells good and taste good…. to them. He will sneak a piece of yummy pizza. Might be attracted to that potato salad or dip sitting on the picnic blanket. The smell of a hamburger can be irresistible. You might leave the remains of a bowl with leftover stew for your buddy to lick clean. And the draw to dig up the leeks in the vegetable garden can be overwhelming for some. There are many reasons why a dog will consume this little devil. Chives, shallots, green onions, onions, leeks, and garlic are all included in the Allium family.

It’s hard to tell what a pooch has gotten into. They can’t talk and probably won’t want to tell you what they have gotten into anyway. They’re dogs; they like that kind of stuff! Their symptoms might simply be a sour stomach causing vomiting after eating sticks and grass! Needless to say, if your dog is showing any of these signs and symptoms, take him to the vet as soon as possible. I know these are general symptoms your dog may display, but it’s best to err on the side of caution and not risk severe illness or death.

Just as with humans, onions can cause a multitude of problems in animals. Gas and bloating are our least worries. Dogs’ symptoms can range from a mild reaction such as an upset stomach, to more severe reactions such as liver toxicity or death. Surprisingly, it really doesn’t matter if your dog ingests raw or cooked onions; even dehydrated or powdered onions such as in soup mixes can cause harm. It all depends on how sensitive your dog is to the Allium family.

Similar to human allergic reaction with eating peanuts, some dogs can have more sensitivity than others. A general rule is a dog that ingests 5-15 grams / kilogram is at risk for a toxic reaction; it’s less for cats. Basically, that is 0.5% of their body weight which can be the tiniest diced portion known to man. Garlic is 5 times more powerful than onions, so Fido would need less to initiate a reaction. A mild reaction can go unnoticed, with only a few red blood cells being lysed (damaged). A moderate reaction might leave a dog lightheaded or lethargic, which might easily go unnoticed by the owner. But with a severe reaction, your dog can show signs and symptoms of vomiting, diarrhea, heavy panting, and jaundice (yellow coloring to the gums and eyes). The jaundice occurs due to liver damage and may take several days to develop. The cause of all the trouble is found in the onion flesh called Thiosulfate. Once the onion is eaten, thiosulfate breaks down to organosulfur in the GI tract. Your precious pooch does not have the enzymes to digest this compound.

Now organosulfur reaches the red blood cells and oxidizes hemoglobin component. As we all know from school, the hemoglobin molecule carries much needed oxygen to every cell. Once oxidized, clumping exists and makes oxygen molecules unable to transfer across to vital cells. Under a microscope, this looks like tiny purple clumps…. the tell tale sign of onion toxicity. This is the most severe reaction: Heinz Body Anemia.

(Normal red blood cell)

(Heinz Body Anemia, 3 distinct clumps)

You can diagnose this by looking at his gums and mucous membranes. No oxygen, no color! The gums will instead be pale. The dog will also have dark or reddish brown colored urine due to the elimination of these damaged red blood cells, and a rapid heart beat due to increased demand for oxygen to starved cells. Sudden onset of weakness, fatigue, and lack of interest in food can follow.

Deb LaPaugh, of La Paw Animal Hospital (yes, that’s her name! Fitting for a veterinarian) is concerned about an animal that looks jaundiced, shows signs of weakness, and is peeing blood. She mentions if a dog comes into the vet with these symptoms, the usual course of action will be blood work and a physical examination. A CBC (complete blood count) can reveal the severity of any loss of hemoglobin and a blood smear to show the clumped red blood cell. The dog would be placed on supportive care such as giving IV fluids and keeping the dog over night in the hospital for observation. From here the vet can determine if more drastic measures need to be taken.

Early stages of onion toxicity can be treated easily with supportive care and detoxification such as special vitamin C mixture to help counteract the poison. The later stages would include additional treatment such as supplemental oxygen and blood transfusions. The dog would then be monitored for several more days. Deb LaPaugh states she has seen cases where the dog has stayed hospitalized for over one month.

Onions can have costly consequences, but your furry friend will most likely recover from his misfortune. Next time reconsider feeding your dog extra goodies form the table. I would rather have a skinny healthy dog than a fat sick one. In the future we will look at other foods that might cause a potential reaction.

1 gm = 0.06 teaspoons
1 lb = 0.45 kilograms
Deb LaPaugh, VMD. La Paw Animal Hospital, Bend Oregon. 4-18-15

The Dopamine Response

The regulation of dopamine plays an important role in mental and physical health. Dopamine is a catecholamine that acts as a hormone; you might know another as epinephrine or adrenaline. Catecholamines are released during stress. Stress can be a simple process of trying to learn a new task. Dopamine acts as a response to the Sympathetic Nervous System. The SNS increases heart rate, dilates eyes, and increases excitability. This is done is a certain area of the brain called the Limbic system.

The Limbic system houses the Hypothalamus, Hippocampus and Amygdala which controls reward/ pleasure, emotions, motivation and some motor movement. The release of this hormone comes from the Hypothalamus. The Hippocampus contributes to its learning process. While the Amygdala primary role is in emotional learning and fear conditioning. If that’s not confusing enough, another way of looking at this process is the neurotransmitter or chemical messenger (dopamine) sends a signal across a nerve cell to help to control certain function of the brain.

When a dog is stimulated with a pleasurable thing dopamine is released. This release creates a desire to keep doing this behavior, just like in Pavlov’s classical conditioning where he trained his dogs by ringing a bell and feeding multiple times. He noticed the dogs starting to salivate with just the ringing of a bell. The bell signaled a release of dopamine in anticipation of a pleasurable thing.

Here is a personal example of the dopamine response. I’ve been taking my Mcnabb to learn how to herd sheep. No food is used during any of the lesson. At first, she didn’t understand her duties to herd, but with praise she began to figure it out. I saw her ears go up and tail start to wag after each verbal reward. Now when I drive into the lot she starts crying with excitement. The response to dopamine is creating a pleasurable experience for her and sheep herding.

I don’t recommend praise rewarding on a young puppy. My dog is six and understands verbal cueing such as “yes” and “good girl” as a reward.

This process of positive training is much quicker compared to other training method like negative reinforcement or dominance training ie: collar pull when training a dog to heel. Most dogs will resist, thus creating more anxiety and fear. And in turn, the dog doesn’t learn this to be a positive experience. The best approach to dog training is to stimulate the dog’s pleasure center rather than take the negative non-dopamine route.


Can dogs and cats get along?

Let’s face it: getting along with one another is tough. We’ve all seen it: cats fighting dogs, cats fighting humans, cats fighting other cats. All of this disrupts the peace of the household. The Perfect Paws Web site describes dogs as social creatures and cats as independent, solitary creatures.¹

However, cats do tend to live in groups. In observing my own animal family (two cats and two dogs), I have seen that this is true! The obstacle to the animals’ getting along lies in the two animals’ dispositions. Understanding each animal’s needs and instincts—and working within them—will allow for a more respectful relationship between cats and dogs.

Introducing a cat and a dog to each other takes gentleness and patience on the part of the owner. Most dogs and cats will take a few days to become acquainted with one another’s scents. The owner can facilitate this process by placing the cat in the dog’s area, making sure the dog is elsewhere. The cat can then sniff around the room, undisturbed, to familiarize itself with a prospective roommate. For the same purpose, place the dog in the cat’s area while the cat is away. After several opportunities to become accustomed to each other’s scent, invite the two animals into the same area.

The first encounter is an important one; setting up the right conditions will result in a more peaceable future for the animals. It’s a good idea to exercise your dog to get him tired prior to this first meeting and to trim your cat’s nails. Praise your dog; give him treats for being a good dog. Redirect him at the slightest sign of his intent to lunge at the cat. Correct his behavior with a positive approach or vocal tone so that the association is a pleasant one. Show your cat an escape route or safe place to hide, preferably up high, out of the dog’s reach. Praise your cat’s good behavior too. It only takes a second for a bad experience to occur, so watch for signs of stress, and separate the animals before an incident starts.

Supervision is needed when placing your cat and dog in the same room together for the first time. Let them see and smell each other for a few minutes, and then separate them from each other. Your cat might hiss and bat at your dog to set distance boundaries. Watch your two pets interact as you increase their time spent together.

Allow this to happen naturally, but watch for excessive signs of stress in both animals. A little stress is good. Hair will stand up, and cats will arch their back, turning sideways (both animals instinctively make themselves bigger). The animals’ eyes will dilate with excitement, and they will stare intently. The tail is a good indicator of whether the meeting is going well (tail up means assertive, tail between legs means afraid, tail in neutral position means relaxed). Dogs tend to become aggressive and exhibit predatory behavior when they are highly excited or stressed. Cats tend to mark their territory with urine, excessively groom themselves, hide, or display aggressive behavior.²

Your dog and cat need to make friends with each other on their own with as little intervention as possible from you. In this fashion, they will learn to respect each other. Watch them play. The dog will jump around and perform a play bow (elbows on the ground and back legs up). Cats will pounce and box. This play should be done in a gentle manner and equally by both players. If for any reason it doesn’t feel right, end the session, and try again later.

Keep in mind the animals’ dispositions and personalities. Some animals have a strong prey drive, some will tolerate each other, and some will become best buds! I can’t stress enough the importance of a slow transition and of lengthening the time of supervised visits until you can finally leave the animals alone together.

Either way, you can help your family pets build a relationship that results in household harmony.

2. behavior/introducing-your-cat-new-dog


How dogs see the world – A look through the eyes of a dog.

At the dog park, I throw Cole his ball and can’t understand why he passes over it so many times. It’s right under his nose!  Why doesn’t he see it? I hear other owners yelling at their similarly oblivious dogs, “Get it, get it!” It’s right there. They are getting frustrated with their dog, some calling their dog stupid.

It doesn’t make sense that dogs are supposed to have such superior senses and they can’t see something right under their nose. Well, it turns out they don’t see the same as you or me. Contrary to popular belief, dogs don’t see in black and white. They see in muted shades of color. Our eyes  are composed of cones and rods. The distribution of these cones and rods are different in dogs; they do not have the sharpest vision, nor do they see with quality and detail. Dogs have less cones, more rods, and tapetum tissue cell for better night vision.

Remember learning in school that “cones are for color”. Well, dogs are sort of color blind. Colors like green, orange, and red are most like shades of gray and brown. Blues, grays, browns and yellows are the primary colors dog see. “Behavior testing suggests they can distinguish red and blue colors but often confuse green and red.”


More rods allow the dog to pick up on light and movement better. This also enhances their ability to see  by differentiating between shades of gray in dim light. This allows the dog to keeping their eye on a squirrel!

The tapetum tissue cell enhances the dog’s vision in dim light. These tissues can be seen by shining a bright light into the dogs eye; the eyes shine back giving them a mirrored appearance. Although the tapetum tissue cells are good for night vision it scatters reflective light detracting from visual acuity.

Visual acuity is the ability to focus on an object and judging distance. Surprisingly, dogs have poor acuity compared to humans. What a dog sees at 20 feet, we can see at 90 feet. A dog’s eyes are placed on the sides of their head, giving them better peripheral vision and a smaller focal point.


Many people buy toys without any knowledge that dogs have such severe eye sight problems. The dog toy manufacturers seem to create toys to appeal to humans. When buying a toy, consider where you are using the toy. Will your dog be playing with it on the grass, or chasing after it in the water? Blue is the better color for playing on the grass. As you can see from the picture above, blue feathers stands out better against the green palm branch. The red, yellow, and green colors are very similar appearing as muted shades of brown. In contrast to the grass, orange or yellow are better colors for toys thrown in the air.

The best thing to do is to have toys with multiple colors on them. A light and a dark contrast such as a pattern or patch or bull eyes on the toys will allow the dog to see it in either sky or grass. A plain black and white contrast would work.

Just like humans, dog’s eyes have problems, too. As your dog gets older, his eyesight changes. Dogs’ nearsighted vision declines starting at middle age, approximately 7 years old, so catching a small treat or walking down stairs might become more difficult then.

Cataracts are a common eye disease among dogs, causing clouding of the lens which can lead to blindness. There are a slew of other eye problems plaguing dogs, from simple allergic reactions to more extreme diseases, like Pannus, that can be devastating to your dog if it goes untreated.

It’s a wonder dogs can survive with such poor eye sight.

The images inside this post are used with permission from the Veterinary Vision Inc. (Source:


How Many Words Can Dogs Learn?

We don’t speak dog. We definitely don’t understand animal behavior. Dogs use a universal code to communicate with one another: body language, eye contact, vocal intonations, and intuition. Introducing dogs into human society has been a huge learning experience for both parties involved, but dogs have adapted well over the centuries from being village strays to becoming companions to performing in shows. Learning words has been an important factor in dogs’ lives.

A dog can recognize an average of 160 words. Some words are easier to learn than others; for example, “walk” is associated with something dogs like to do, whereas the command “sit” is harder because it is based on a learned behavior. Puppies learn fairly quickly that there is a reward for good behavior and will start to associate a word with a behavior desired by the owner. We all use some type of positive/negative and reward/punishment system to teach dogs to associate sounds (or words) with behaviors; this is called “operant conditioning.” Puppies learn that they receive treats when they do something the owner asks them to do, and they learn that the cookie is taken away from them when they do something that the owner does not want. Jean Cotes explains this in his Walking in Harmony program.

How we say words makes it easier for dogs to pick up on what is being taught to them. Tone, duration, and sound elicit different types of behavior. The emotional inflection of sentences spoken to dogs plays a big part in how they learn words. Watch how people talk to their dogs. Their sentences usually have a melody or mood to them; the phrases “do you want,” “go get the ball,” and “you rolled in poo!” are examples. High tones will excite the dogs; low tones will not capture their attention as readily. Drawing out a word emphasizes attention to the word: “staaaaaaay” will cause the dog to slow or stop what it is doing. Clicking and ticking sounds and quick, explosive utterances capture the dog’s attention. These sounds are good to use when dogs are off leash and at a distance from the owner.

“Words” is a relative term; dogs learn sounds. Dogs are like sponges when it comes to learning. They have an unrelenting drive to please humans. Rewarding them for good behavior becomes a quick and easy way to teach them. I’ve known people who have taught their dogs words in German and English (bilingual dogs!) and others who have taught dogs the command “roll over” but have conditioned them to know that means to sit. The earlier you start talking to your dog, the better your dog will be able to comprehend your words.

As far as dogs learning words, some can even talk! Many people have watched the YouTube video of the dog that says “I love you.” Some dogs even sing. I’ve spent many nights listening to my dog joining in on a husky session of singing while in agility class. Of course, they don’t know what they’re saying, but they learn sounds. They are watching and learning from our every move. What other animals have been at our sides for centuries, gaining valuable trust and providing companionship? Needless to say, dogs are smart, awesome creatures.


5 Proper Dog Walking Etiquette Tips

I live in a city that was named Dog Town USA. We have lots of paths, trails, and dog parks for our dogs to roam. Every day, I take my two dogs running with me on our local trail.

The other day, we were doing our usual routine: effortlessly moving left, moving right, and occasionally slowing due to congestion. A walker stopped to tell me how “well behaved” my dogs were, and that she couldn’t imagine her own dogs ever behaving so well. This comment made me think about how my dogs became this way.

When I got my first dog (as an adult), I wanted to be a responsible dog owner. I wanted my dogs to not jump on people, to sit patiently while I talk to friends, to pass by other dogs without incident and to not pull on the leash. Through my experience with various training methods, I have learned many good tips for a well trained dog. Here are a few:

  1. First and foremost, dogs communicate through the owner’s energy. Basically, they feed off the owner’s mood. Tension from holding the leash tightly transfers right down to the dog. A dog picks up on the owner’s mood. The dog’s behavior during a walk will reflect that mood further. Time spent walking one’s dog should be a positive bonding experience.
  2. Dogs need to greet other dogs properly. Their communication is through sniffing. They should start at the back and work their way to the front. Sniffing the back end sends valuable information about the other dog, including its gender, age, and health. Starting out, the dogs greeting time should be short (less then 5 seconds). Watch your dogs’ behavior for clues of stress. If a dog’s tail is down or his hair stands up at its haunches, the owner should take the dog away.
  3. Verbal communication is valuable to make that great connection with our dog. They will learn good behavior from the owner, or unwanted “dog” behavior if left with faulty communication. If a dog is not told what is right, he will naturally be self-rewarding. Everyone tends to learn more effectively through positive praise. Speak with a positive tone of voice, have fun. Create a positive environment.
  4. Dogs focus on movement. If you keep them moving they will focus on the walking with you instead of what is moving past them. If the owner stops, the dog will focus on the more interesting things. I cue my dogs with “on by” to know they need to go passed the distraction.
  5. While out on the path, owners can work on connecting with their dog when faced with distractions, such as certain people or dogs walking by. For example, the “Puppy push up” (sit and down) interspersed with a stand to keep the dog focused. Take treats to have better focus, the higher value the better. I also like teaching dogs “on by” and teaching them “left” or “right” when faced with crowded areas.

A good dog is a happy dog.