This is a disorder of the thyroid gland. He will challenge your authority — good naturedly, of course — but you must be able to establish and maintain your role as pack leader, or he'll get the upper hand. Please help improve this article by adding citations to reliable sources.

An anxious dog can be very destructive, barking, whining, chewing, and otherwise causing mayhem. He thrives on attention from his loved ones, and he's unhappy if left alone too much. Breeders have bred modern bull-type terrier breeds, such as the Bull Terrier and Staffordshire Bull Terrier , into suitable family dogs and show terriers.

Image Gallery. Signaler un abus 1 2 3 4 5 de 5. If you're a neatnik you'll need to either pick a low-shedding breed, or relax your standards.