If you're a dog owner thinking about adding another furry friend to your family, you might have heard that dogs of the same sex are more likely to fight than opposite-sex pairs. But is this true?
What Does the Research Say About Same-Sex Dog Aggression?
Studies suggest that dogs of the same sex might be more likely to fight, but the evidence is limited and sometimes outdated. One of the most detailed studies on this topic, conducted by Sherman et al. in 1996, did find that adding a female dog to a household could cause tension, although it was slightly less likely than adding a male. Additionally, they found that breed, weight, and the number of dogs in the household also play important roles in dog aggression.
Key Findings from Research on Dog Aggression
Breed and Weight Matter: Sherman et al. (1996) found that certain breeds and sizes are more prone to initiating conflicts. For instance, in their study, 71% of household fights were started by purebred dogs. The heavier dog of the two were also more likely to initiate a fight—85% of the aggressive incidents were initiated by the larger dog.
Female Dogs and Aggression: Female dogs were more likely to start fights in the studies reviewed. For example, Sherman et al. (1996) found that none of the male dogs initiated fights in male-female pairings. If there was an issue, it was usually the new female dog that started it. Similarly, Feltes et al. (2020) found that in 70% of aggression cases within households, the female was the instigator.
Impact of Spaying and Neutering: The studies showed interesting patterns related to spaying and neutering. Neutered male dogs showed very low levels of aggression, making them a potentially good choice for multi-dog households. However, spaying did not seem to reduce aggressive tendencies in female dogs.
Behavioural Issues and Aggression: Sherman et al. (1996) noted that 85% of dogs who were aggressive toward other dogs in the household had other behavioural problems, such as territorial behaviour or elimination issues. This suggests that a dog’s behaviour history and personality may play a more significant role than their sex when it comes to aggression.
Factors Beyond Sex: What Else Affects Dog Aggression?
The studies suggest that it’s not just the sex of the dog that determines whether they will get along, but a combination of other factors, including:
Predictability and Structure: Wrubel et al. (2011) found that when dogs have a predictable routine, clear access to resources, and adequate space, the chances of in-house aggression are reduced. Their study showed that with proper management, 72% of same-sex male pairs, 75% of opposite-sex pairs, and 57% of same-sex female pairs showed improvement in behaviour.
Jealousy and Owner Attention: Prato-Previde et al. (2018) found that jealousy can play a significant role in dog aggression. Dogs, like human siblings, may compete for their owner's attention. This means managing the time and attention given to each dog is crucial in maintaining peace.
Breed Characteristics and Genetics: Certain breeds are more prone to aggression due to their genetic background. For example, Wrubel et al. (2011) noted that dogs of the same breed might fight more due to similar motivations and value for resources. This is supported by findings from Serpell and Duffy (2016), who found that German Shepherds are more likely to show aggression toward strangers, especially during puberty.
Puberty and Hormonal Changes: Puberty can be a challenging time for dogs, just like it is for humans. Wrubel et al. (2011) found that dogs often struggle with emotional regulation, impulsivity, and risk-taking behaviour during this period. Studies also show that changes in hormones, like the testosterone surge in male dogs or increased levels of LH and androgens in females, can lead to irritability and aggression (Fusi et al., 2023; Mialot et al., 2009).
Tips for Encouraging Harmony in a Multi-Dog Household
If you’re thinking about adding another dog to your household, here are some tips to help create a peaceful environment:
Consider Each Dog’s Personality and History: When introducing a new dog, consider their past behaviour, temperament, and how they react to other dogs. Dogs with a history of territorial behaviour or other issues may need more careful management.
Manage Resources and Attention: Make sure each dog has access to their own resources (like food bowls, toys, and sleeping areas) and receives equal attention to avoid jealousy and competition.
Gradual Introductions and Controlled Environment: Introduce new dogs gradually in a controlled setting. Watch for signs of tension or aggression and separate them if necessary.
Spaying and Neutering: While spaying and neutering do not guarantee harmony, they can reduce the likelihood of aggression, especially in male dogs.
Training and Behaviour Modification: Work with a professional to help reduce reactivity and anxiety around triggers.
Conclusion: It's Not Just About Gender
While same-sex dogs may be more likely to fight, other factors like breed, size, hormonal changes, and personality play a significant role. Understanding the dynamics of your dogs and managing their environment and relationships with care can help ensure a harmonious multi-dog household. After all, every dog is unique, and with the right approach, any pairing can become a happy and peaceful one.
Add comment
Comments