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.
Photo by rjseg1. Chinese Crested: Hairless breeds always draw a crowd. Most people *do* believe dogs should have fur! The little Chinese Crested has fur on its paws (socks), its tail (plume) and a long flowing mop on its head (the crest). Their skin is soft and needs to be carefully cared for.