The weather in Tokyo in December will be from 0ï½10 degree, pretty cold but rarely snow. However, you might get hot if you walk inside building, underground paths or public transport, which is most of the time in Tokyo. Therefore, if you wear many layers it might become annoying.
Each deciduous tooth root will generally be absorbed by the adult tooth, though there are instances where this does not properly occur. At three months, the incisors begin to fall out to make room for the new adult teeth. At the age of four months, the adult molars and adult canines are beginning to come in. Between the ages of six and seven months, the adult molars will come in. Finally, by seven to eight months, the full set of adult teeth should have come in. By the time a puppy is eight months old, it should have a full set of a total of 42 teeth, but some breeds have more or fewer. The larger the dog, generally speaking, the faster the teeth will appear.
At around four months of age -- and it can vary from breed to breed and even from dog to dog -- the 28 puppy teeth are replaced with 42 adult canine teeth, which include the molars. You will see six incisors on the top and bottom (these are the smaller front teeth located between the large fang-like canines).