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8

Dogs have a genomic structure that allows breeding with high variation in size, shape, coat quality, color and other qualities particular to each breed as well. Other domesticated animals can be bred for as many qualities, but dogs in particular show a wide level of morphological traits - varying in size from just over a pound to the size of a wolf, from ...


6

There are many commercially available mixed breed ID tests, as a quick Google search will tell you. However, I cannot vouch for their accuracy: this news article may be of interest. Also this. The genetic markers used to identify breeds in a mixed-breed are microsatellite markers (sometimes SNPs): you can read more here, but from the abstract: We used ...


3

Rabbits have been bred domestically since at least ancient egypt. Rabbits vary in size from > 15 kg (35lb) for a Continental Giant to .5kg(1lb) for A small Netherland Dwarf. The American Rabbit Breeders Association recognizes 47 different breeds of rabbit for shows and there are a number of breeds that are either not recognized or are being developed ...


1

Dogs are highly diverse in their patterns of copy number variation (variation in the number of copies of different genes). This has been shown to be probably related to the diversity in morphology. It would thus presumably also affect other traits such as those that you list, and it seems to at least have been shown for disease susceptibility. Interestingly, ...


1

I cannot find any definite articles on why there would be a reason for this behaviour other than the same ones that you have mentioned in your article. It could be because it wants to mark its territory or the dog wants to hide its scent. One point that I would also like to add is force of habit. As Charles Darwin (the father of evolutionary biology) had ...



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