The sight of two dogs stuck together after mating can be alarming, especially for first-time dog owners. This phenomenon, known as a copulatory tie or “tied,” is a normal part of canine mating and occurs in most canid species, including wolves and foxes. But Why Do Dogs Get Locked Together? This article will explain the science behind this natural process, how long it lasts, and what to do if you witness it.
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The Science Behind the Tie
The copulatory tie happens in the final stage of mating. During copulation, the male dog’s penis swells with blood, specifically in an area called the bulbus glandis. This engorgement causes the penis to become trapped within the female’s vagina, effectively locking the two dogs together. This tie is held in place by contractions of muscles in both the male and female.
This natural locking mechanism isn’t just a random occurrence; it serves an evolutionary purpose. By keeping the dogs together, the tie increases the likelihood of successful fertilization. It allows sperm to be more effectively transported to the eggs by preventing semen leakage. Dr. Marty Greer, DVM, a renowned expert in canine reproduction, explains that the tie “improves the likelihood that semen reaches the eggs by pushing it forward and acting as a plug to keep semen inside the female.” This is particularly important for dogs, who, unlike cats, only go into heat twice a year.
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Duration and Behavior
The duration of the tie varies, typically lasting between 5 to 45 minutes. During this time, the male dog usually dismounts and turns around, standing back-to-back with the female. While this might look uncomfortable, it’s a natural position. It’s crucial to allow the dogs to separate naturally. Interfering and trying to pull them apart can cause serious injury to both dogs.
First-time matings can be stressful for dogs, and they may exhibit signs of anxiety while tied. It’s essential to keep the environment calm and reassure the dogs with a gentle voice. Encourage them to remain still and wait for the swelling to subside, allowing for a safe separation.
Tie Doesn’t Guarantee Pregnancy
While the copulatory tie increases the chances of pregnancy, it doesn’t guarantee it. Just as with humans, not every mating results in conception. Other factors can influence successful fertilization. A veterinarian can confirm pregnancy through an examination or ultrasound around 25 days after mating.
Neutered Dogs and the Tie
Although rare, it’s possible for neutered dogs to become tied during mating attempts. This is more likely in recently neutered dogs, as their testosterone levels might still be higher than in long-term neutered dogs. Testosterone plays a significant role in the swelling of the bulbis glandis, but even reduced levels can still result in arousal and a tie.
What To Do (and Not Do)
Witnessing a copulatory tie can be unsettling, but it’s crucial to remain calm and avoid interfering. Never attempt to separate the dogs forcefully. Doing so can lead to painful and potentially severe injuries.
The best course of action is to let nature take its course. Keep the environment calm and quiet, reassuring the dogs with a soothing voice. They will separate naturally once the swelling in the male’s penis reduces.
Preventing Unwanted Breeding
The most effective way to prevent unwanted pregnancies is to spay or neuter your dog. This not only eliminates the risk of accidental litters but also offers numerous health and behavioral benefits. If you’re not planning to breed your dog, spaying or neutering is the responsible choice. Keeping intact males and females separated, especially when the female is in heat, is crucial. However, it’s important to remember that a male dog driven by instinct can be incredibly persistent and may go to extreme lengths to reach a female in heat.
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In conclusion, while the copulatory tie might seem strange or even distressing, it’s a normal and necessary part of canine reproduction. Understanding the biological reasons behind this natural process can help alleviate concerns and ensure the well-being of your dog. If you have any further concerns about dog mating or your dog’s reproductive health, consult with a veterinarian.
