ABO and distribution by country[edit] 50.0% and above 40.0â49.9% 30.0â39.9% 20.0â29.9% 10.0â19.9% 5.0â9.9%. Blood group B has its highest frequency in Northern Asia and neighboring Central Asia, and its incidence diminishes both towards the west and the east, falling to single digit percentages in Spain.
Dogs routinely dig for several reasons, all of which can be seen as instinctual behaviors that they got from their ancestors. One reason your dog may be digging into the couch is due to how dogs would dig out dens in the wild as a place to rest and protect themselves from various predators. Another reason may be due to your dog wanting to conceal the place where they sleep, like animals do in the wild.
Digging is often a natural and instinctual behavior for dogs, but certain breeds are more likely to do it than others â especially members of the Terrier group. From the Jack Russell Terrier to the Siberian Husky, these dog breeds are likely to leave a few potholes in your yard if left to their own devices. Dogs That Were Born to Dig. Jack Russell Terrier. Go ahead and put your shovel back in the toolshed; the Jack Russell Terrier has your gardening needs covered.