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 Chow Chow (sometimes simply Chow) is a type of dog breed originally from China, where it is referred to as Songshi Quan (Pinyin: sÅngshÄ« quÇn é¬çç¬), which means âpuffy-lion dogâ. Fast Facts Group classification: Non-Sporting Country of origin: China Date of origin: Antiquity Weight (M): 50 - 70 lb Height (M): 18 - ...