Puppy
A puppy is a juvenile dog, generally less than one year of age. The term is sometimes abbreviated to pup, and in that form is used for the young of some other animals, such as the wolf.
Birth and early development
The number of puppies in a litter varies greatly by breed. Some smaller dogs bear only one or two puppies at a time, while some larger breeds bear ten or more. In some cases, one puppy will be the runt of the litter, being noticeably smaller than the other puppies. The runt is generally quite meek or very aggressive because of its size compared to its siblings.
Born after approximately 63 days of gestation, puppies emerge in an amnion which is bitten off and eaten by the mother dog.
At first, puppies spend ninety percent of their time sleeping and the rest feeding. During their first two weeks, although it is not completely visible, a puppy's senses all develop rapidly. Puppies open their eyes about nine to eleven days following birth. At first, the retina is poorly developed and their vision is poor. Puppies are not able to see as well as adult dogs. In addition, puppies ears remain sealed until about thirteen to seventeen days after birth, after which they respond more actively to sounds. From two to four weeks, puppies usually begin to growl, bite, wag their tails, and bark.
Cropping and docking
Some breeds traditionally have their tails docked or ears cropped, or both. Many countries now ban cropping and docking for cosmetic purposes, but other countries have no such prohibitions. Some breeders prefer to remove a dog's dewclaws to prevent future injuries. All of these procedures are usually performed within the first few days at the veterinarian's office.
Training
Training puppies is not always easy: it requires work. Puppies should be touched and held from birth, although only briefly and occasionally until their eyes and ears open. After that, it is critical for their socialization that they interact often with humans. Otherwise the puppy may become vicious.
Puppies can begin learning what a leash feels like as soon as they are old enough to begin exploring outside their whelping box, just by attaching a leash to their collar and letting them pull it behind them, then walking with the puppy around the house or yard holding onto one end of the leash.
Training of basic obedience can begin at the same time, although recommendations for how intense and how soon vary. Training for young puppies is generally recommended to be light, gentle, and fun, more like a game than an exercise. Most formal puppy classes accept puppies starting at three months of age, although some provide socialization classes for younger pups.
Housebreaking can also begin by the time the puppy is two to three months old, although they simply do not have the physical control of their bodies to be completely reliable until they are six months to a year old.
Read more...
