Origin of the domestic dog them to more successfully adapt to the human habitat. Even today, the wolves on Ellesmere Island do not fear humans, which is thought to be due to them seeing humans so little, and they will approach humans cautiously, curiously and closely. Some studies have found greater diversity in the genetic markers of dogs from East and Central Asia compared to Europe and have concluded that dogs originated from these regions, despite no archaeological evidence to support the conclusions. One reason for these discrepancies is the sustained admixture between different dog and wolf populations across the Old and New Worlds over
Dog type the written standard and awards are based on how closely the dog resembles the standard. Note 2. Many modern breeds of dogs still use the names of early types, although they may or may not resemble the old types. Note 3. Early attempts to categorize dogs as species of "Canis" are described by Carl Linnaeus in Systema naturae, 1758, Gmelin in 1788, Kerr in 1792. Dog type Dog types are broad categories of dogs based on form, function or style of work, lineage, or appearance. In contrast, modern "dog breeds" are particular breed standards, sharing a common set of heritable