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Female cycle. The average length of the reproductive cycle for females is 2–4 weeks. Females reach sexual maturity (puberty) between 8 and 18 months of age. There is a tremendous variability in the maturation age between breeds, and even within a breed of dog. [5] 1.
Dog anatomy. Dog anatomy comprises the anatomical study of the visible parts of the body of a domestic dog. Details of structures vary tremendously from breed to breed, more than in any other animal species, wild or domesticated, [ 1 ] as dogs are highly variable in height and weight.
The bulbus glandis (also called a bulb or knot) is an erectile tissue structure on the penis of canid mammals. [1][2][3][4][5][6] During mating, immediately before ejaculation the tissues swell up to lock (tie) the male's penis inside the female. The locking is completed by circular muscles just inside the female's vagina; this is called "the ...
Dog behavior is the internally coordinated responses (actions or inactions) of the domestic dog (individuals or groups) to internal and external stimuli. [86] Dogs' minds have been shaped by millennia of contact with humans. They have acquired the ability to understand and communicate with humans and are uniquely attuned to human behaviors. [87]
Additionally, dogs are the only species apart from humans seen to have a significant incidence of prostate cancer. [66] The prostate is the only male accessory gland that occurs in cetaceans, [67] consisting of diffuse urethral glands [68] surrounded by a very powerful compressor muscle. [69] The prostate gland originates with tissues in the ...
Male dogs have a conspicuous penis sheath. [8] Penile sheath of a Chihuahua with cryptorchidism. In stallions, the retractor penis muscle contracts to retract the stallion's penis into the sheath and relaxes to allow the penis to extend from the sheath. [9] The penis sheath of a male axis deer is elongated and urine-stained.
Dog (domestic dog) The Labrador Retriever or simply Labrador is a British breed of retriever gun dog. It was developed in the United Kingdom from St. John's water dogs imported from the colony of Newfoundland (now a province of Canada), and was named after the Labrador region of that colony. It is among the most commonly kept dogs in several ...
Category. : Dog anatomy. Wikimedia Commons has media related to Dog anatomy. This category contains articles about the physical structure and appearance of the domestic dog. For diseases and disorders of dog anatomy, see Category:Dog health .