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In this pedigree chart, G is the progeny of C and F, and C is the biological uncle of F. To find the coefficient of inbreeding of G, first locate a loop that leads from G to the common ancestor through one parent and back down to the other parent without going through the same individual twice. There are only two such loops in this chart, as ...
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).
The World Canine Federation recognizes 350 unique dog breeds. In the U.S. The American Kennel Club now recognizes 209 breeds. That’s…a lot of dogs. To better understand each breed, humans have ...
The word pedigree is a corruption of the Anglo-Norman French pé de grue or "crane's foot", either because the typical lines and split lines (each split leading to different offspring of the one parent line) resemble the thin leg and foot of a crane [3] or because such a mark was used to denote succession in pedigree charts. [4] A pedigree ...
A Papillon at a dog agility competition. The most iconic aspect of Papillons are their ears, which are large and well fringed, giving them a butterfly-wing-like appearance. Papillons are particolored or white with patches of any color. An all-white dog or a dog with no white is disqualified from the conformation show ring. A blaze (area of ...
The dogs' heads also had, peculiarly, a "flattened" appearance, a trait which is sometimes ascribed to the diet of the dogs, albeit in some unspecified way (possibly nutritionally-related); considering poi does not require substantial chewing to consume, the dogs may have gradually devolved the need to maintain strong temporalis muscles, as a ...
Cephalic index viewed from above the head. The cephalic index or cranial index is a number obtained by taking the maximum width (biparietal diameter or BPD, side to side) of the head of an organism, multiplying it by 100 and then dividing it by their maximum length (occipitofrontal diameter or OFD, front to back).
The Polynesian Dog refers to a few extinct varieties of domesticated dogs from the islands of Polynesia. These dogs were used for both companionship and food and were introduced alongside poultry and pigs to various islands. They became extinct as a result of the crossbreeding that occurred after European breeds of dogs were introduced.