Otter females are called bitches or sows, and their offspring are called pups. The collective nouns for otters are bevy, family, lodge, romp (being descriptive of their often playful nature) or, when in water, raft. The feces of otters are typically identified by their distinctive aroma, the smell of which has been described as ranging from freshly mown hay to putrefied fish; these are known as spraints. The gestation period in otters is about 60 to 86 days. The newborn pup is cared for by the bitch, dog and older offspring. Bitch otters reach sexual maturity at approximately two years of
Marine mammal observer Marine mammal observer A marine mammal observer (MMO) is a professional in environmental consulting who specializes in whales and dolphins. In recent years there has been increased concern for the effect of man-made noise pollution in the ocean, particularly upon cetaceans - which are known to be sensitive to sound. As a result, environmental regulations have been introduced in an attempt to minimise negative impacts on marine wildlife. These guidelines have focused on the oil industry's seismic exploration for offshore oil. They center on the practice of delaying or shutting down the use of air-guns if a whale or dolphin