1 Certain parts of the brain shrink, especially the prefrontal cortex (an area at the front of the frontal lobe) and the hippocampus. 2  Both areas are important to learning, memory, planning, and other complex mental activities.
A strong work ethic dog, the Bergamasco is a big fluffy breed with distinguishing characteristics of its coat. The hairs seem to be âdog hairs, âgoat hairs, while wool can also be noticed. These hairs combine to form black or gray mats which grow throughout Read More. Image.
In fact, for years, two small dog breeds â the Yorkshire Terrier and the Shih Tzu â have landed a place on the American Kennel Clubâs registry of Most Popular dogs in the U.S. The top 10 smallest dog breeds (in alphabetical order) are: 1. Bichon Frise. 2. Boston Terrier. 3. Chihuahua. 4. French Bulldog. 5. Papillon. 6.