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For domestic dogs the tie may last up to half an hour or more, though usually less. [7] When male canines are sexually excited, the bulbus glandis may swell up inside the penile sheath, even if the dog has been neutered. [8] The bulbus glandis also occurs in the penises of some pinnipeds, including South American fur seals. [9]
A dog's glans consists of two sections: Behind the lower, long part (pars longa glandis) lies the "knot" (Bulbus glandis) [1] which expands only after penetrating the vagina and causes the male dog to remain inside the bitch ("Tie") for some time after ejaculation (typically between 15 and 30 min).
Dogs commonly give birth in a whelping box, a simple box or pen provided to the dam to help shelter and contain the puppies. A person who intentionally mates dogs to produce puppies is referred to as a dog breeder. Line breeding is the planned breeding of dogs with their relatives. This is done to strengthen the appearance of specific desired ...
This category collects information about how dogs breed and how and why people breed dogs. Wikimedia Commons has media related to Canidae reproduction . The main article for this category is Dog breeding .
Shih Tzu was nicknamed the "chrysanthemum dog" in England in the 1930s. [5] The dog may also be called the Tibetan Lion Dog, but whether the breed should be referred to as "Tibetan" or "Chinese" is a source of both historical and political contention, and dog historians tend to have very strong opinions on the subject. [6]
Bruce the 9-year-old golden retriever spent most of his life living in a shed as a breeding dog for a backyard breeder . A couple adopted the senior pet in 2024 from Humane Fort Wayne .
A study of dog remains indicates that these were selectively bred to be either as sled dogs or as hunting dogs, which implies that a sled dog standard and a hunting dog standard existed at that time. The optimal maximum size for a sled dog is 20–25 kg based on thermo-regulation, and the ancient sled dogs were between 16 and 25 kg.
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