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.
The Tibetan Mastiff (Wylie : 'dogs khyi; Lhasa dialect IPA : [tÊ°ocÊ°i]) tÊ°Ã²cÊ°i is an ancient breed and type of Large tibetan dog (Breeds canis lupus) familiaris originating with nomadic cultures Of, Tibet, China, nepal And. indiahe Tibetan Mastiff (Wylie : 'dogs khyi; Lhasa dialect IPA : [tÊ°ocÊ°i]) tÊ°Ã²cÊ°i is an ancient breed and type of Large tibetan dog (Breeds canis lupus) familiaris originating with nomadic cultures Of, Tibet, China, nepal And. india