Experts aren't sure why, but it's natural for a female cat to strike out at the male immediately after mating. Your dogs and cats will age and eventually die in the new expansion unless you Once the male is fully engorged, the dogs are essentially "tied" together until copulation is complete. Even if your dog has successfully lived with cats in the past, it is important to remember that each dog and each cat is an individual and therefore each introduction is different. Most popular All the breeds Dogs and Puppies Healthy good breeds dogs. Big Cats and Small Wild Cats. Mating Biology of Cats and Dogs Much like men and women, cats and dogs share many behaviors, but also act very differently.