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
Parasitic flies of domestic animals flies in the Phylum Arthropoda, Order Insecta. Families and genera of dipteran flies are emphasized rather than many individual species. Disease caused by the feeding activity of the flies is described here under Parasitic disease. Disease caused by small pathogenic organisms that pass from the flies to domestic animals is described here under Transmitted organisms; prominent examples are provided from the many species. Disease caused by the feeding activity of dipteran flies is described here under Parasitic disease. Disease caused by small pathogenic organisms that pass from the flies to domestic animals is described here under Transmitted organisms; these organisms