![]() ![]() While in heat, the shepherd escaped the enclosure it was in and ended up crossing with a wolf, which is common in the place where this video was recorded. It was not produced on purpose, but was accidental. To the above information can be added a comment from an anonymous, apparently Brazilian, participant in a forum on wolves (This puppy is a cross between a German shepherd and a maned wolf. Both have a gestation period of nine weeks. The chromosome count of domestic dogs is 2n=78, whereas that of Chrysocyon is 2n=76. The range of Chrysocyon extends over much of southern Brazil, as well as adjacent Argentina, Bolivia and Paraguay. Maned wolf adults weigh 20 to 34 kilograms (44 to 75 lb), about the same as an average dog. ![]() The big red wolf of the South American plains is not closely related to the northern wolves and it was to me unexpected to find it interbreeding with ordinary domestic dogs. In the horse family, for instance, the species are not fertile inter se whereas among the oxen, species seemingly at least as widely separated as the horse, ass, and zebra-species such as the domestic ox, bison, yak, and gaur-breed freely together and their offspring are fertile the lion and tiger also breed together, and produce offspring which will breed with either parent stock and tame dogs in different quarters of the world, although all of them fertile inter se, are in many cases obviously blood kin to the neighboring wild, wolf-like or jackal-like creatures which are specifically, and possibly even generically, distinct from one another. The degree of fecundity or lack of fecundity between different species varies in extraordinary and inexplicable fashion in different families of mammals. The domestic dog is undoubtedly descended from at least a dozen different species of wild dogs, wolves, and jackals, some of them probably belonging to what we style different genera. ![]() Were descended in part from the big red wolf of the neighborhood, a tall, lank animal, with much smaller teeth than a big northern wolf. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |