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).
Diet: They feed on non-spiny fishes such as herring, cod, whiting, mackerel, sardines and occasionally squid or octopus. Harbor porpoises eat about 10% of their body weight each day. Predation: Large sharks, killer whales and dolphins are potential predators of harbor porpoises. Typical Lifespan: They rarely survive beyond 8-12 years, but can live to 20 years.