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.
Although imposing, the biggest dog breeds also tend to be mildly tempered and make excellent family pets. This list details some of the biggest of the big dogs, but âbigâ is relative; some breeds are stout and heavy while others are tall and lean. 10. Kuvasz.