Why do dogs eat poop? Let me tell you the scientific results of dogs eating poop.

Jul 26,2025
4Min

What kind of dogs tend to eat poop

Benjamin Hart, an animal behaviorist at the University of California, Davis, launched two anonymous online surveys. The first survey targeted dog owners. , the survey topic is "Which dogs eat shit". The second survey is only for those dog owners who have real poop-eating dogs. The topic of the survey is "What are the characteristics of poop-eating dogs?"
More than 3,000 responses that met the criteria were included in the statistics. Hart defined the criteria for a "poop-eating dog" as "being caught eating poop by its owner ≥ 6 times." This basically excludes those dogs that accidentally eat poop because of bad eyesight or slipping. In addition to witnessing it with their own eyes, the owners also discovered that the poop was there just now, but it was gone when they tried to clean it, "seeing the half-eaten poop", and "guess, smelling its breath" You know it!”
Surveys show that the vast majority of dogs are not interested in feces. After all, why would they eat feces if they have food to eat? 16% of the dogs have eaten poop ≥ 6 times, 7.1% have been on the verge of danger and have eaten poop 1 to 5 times, and 76.9% have never seen them eat poop. What is the difference between those poop-eating dogs that eat poop more than 6 times and non-poop-eating dogs that never eat poop? Judging from the data, gender is not the main factor, the length of time spent with the mother after birth is not the main factor, and age is not the main factor.
The conclusion is that male dogs are more likely to eat feces after castration. In a 2010 study, 55.8% of castrated male dogs were more likely to eat feces, while only 55.8% of uncastrated male dogs were more likely to eat feces. Accounted for 34%.

So what is poop eating related to?

It has to do with eating. According to statistical analysis, 51.1% of poop-eating dogs have a "voracious eating look", while only 28.2% of non-feces-eating dogs have this eating look. And those picky eating dogs who are picky when eating basically don’t eat poop. In addition, if the dog likes to eat dirt, eats grass or has other pica, it is more likely to like to eat feces.
It can only be said that 41% of the 27 Shetland Sheepdogs eat poop, while none of the 29 poodles eat poop. Now you know what kind of dog to get. New research also found that if you have multiple dogs at home, you are more likely to have poop-eating dogs. It may be because if there are multiple dogs, there will be more dog poop, so the probability of being tempted by food is higher; it may also be that poop-eating is related to the dog's social behavior; or it may be that the dogs have taught each other about poop-eating.

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