famÂ·iÂ·ly pracÂ·tice. A specialty of medicine in which the physician takes responsibility for the health and medical care of all members of a family group, regardless of age or gender, but usually does limited amounts of obstetrics and surgery.
Description & Fascinating Facts. The Harbor porpoise, Phocoena phocoena, (a.k.a. Common porpoise), is a small cetacean with a rotund, stocky body that tapers toward the tailstock. This porpoise reaches a maximum length of 1.9m (6ft) and maximum weight of 90kg (198lbs). On average, Harbor porpoises are smaller, and do not exceed 1.5m (5ft) or weigh more than 60kg (132lbs).
Dallâs porpoises are compact, muscular porpoises that rival killer whales as the fastest marine mammals in Alaska waters. Their black backs and white bellies and flanks resemble the markings of killer whales, but they are much smaller, averaging about six feet in length and weighing about 300 lbs (136 kg).