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.
Some big, fluffy dog breeds are the chow chow, the samoyed, the standard poodle, the old English sheepdog and the keeshond. The abundant, fluffy coats of these dogs require constant care. Keep Learning.
Some Corgis are born with longer coats called the fluffy Corgi or longhaired Corgi.. These dogs do not make the written standard and cannot be shown. Coat colors include red, sable, fawn, black and tan with white markings. There are often white markings on the legs, chest, neck and parts of the muzzle.