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Baculum of a dog's penis; the arrow shows the urethral sulcus, which is the groove in which the urethra lies. Fossil baculum of a bear from the Miocene. The baculum (pl.: bacula), also known as the penis bone, penile bone, os penis, os genitale, [1] or os priapi, [2] is a bone in the penis of many placental mammals.
Baculum of a domestic dog; The arrow points to the bottom groove where the urethra is located. The tip is to the right. Inside the corpus spongiosum lies the baculum.This allows the male dog to enter into the vagina before the erectile tissue is swollen.
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The smallest known adult dog was a Yorkshire Terrier that stood only 6.3 cm (2.5 in) at the shoulder, 9.5 cm (3.7 in) in length along the head and body, and weighed only 113 grams (4.0 oz). The heaviest dog was an English Mastiff named Zorba , which weighed 314 pounds (142 kg). [ 2 ]
Many mammalian species have developed keratinized penile spines along the glans or shaft, which may be involved in sexual selection. These spines have been described as being simple, single-pointed structures or complex with two or three points per spine (strepsirrhines). [1] Penile spine morphology may be related to mating system. [2] [3]
A widespread species of stork with great intraspecific variation. The asphalt stork was described based on material from La Brea, but has since then found in multiple other localities across the United States. Individual asphalt storks could have reached a height of 1.5 m (4 ft 11 in) and a wingspan of 3 m (9.8 ft). † Mycteria wetmorei [105]
Caniformia is a suborder within the order Carnivora consisting of "dog-like" carnivorans. They include dogs (wolves, foxes, etc.), bears, raccoons, and mustelids. [1] The Pinnipedia (seals, walruses and sea lions) are also assigned to this group.
Live broadcasts , tv shows (television programs), reality shows: Al Jazeera Documentary Channel: 2007: Qatar: Arabic: Documentary films: Al Jazeera has been criticized for being state media owned by Qatar and assailed as anti-Semitic, anti-American bias. Al Jazeera Media Network: American Heroes Channel: 1999: USA: English: World War II, U.S ...