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The average weight for adult sea otters that are in more densely populated areas, at 28.3 kg (62 lb) in males and 21.1 kg (47 lb) in females, was considerably lighter than the average weight of otters in more sparse populations, at 39.3 kg (87 lb) in males and 25.2 kg (56 lb) in females [5] Presumably less populous otters are more able to ...
Large male North American river otters can exceed a weight of 15 kilograms (33 lb). [20] It differs from the Eurasian otter by its longer neck, narrower visage, the smaller space between the ears and its shorter tail. [21] Males and female river otters show different non-sexual physical characteristics, [22] with males typically being larger. [16]
Molars are large and flat, used for crushing of prey. Male otters are slightly larger than females on average. Adults are 113–163 cm (44–64 in) in length, including their tails that comprised about a third of their length. Weights range from 10–36 kg (22–79 lb), with most otters averaging between 12 and 21 kg (26 and 46 lb).
An otter's den is called a holt, or couch. Male otters are called dogs or boars; females are called bitches or sows; and their offspring are called pups or cubs. [6] [7] The collective nouns for otters are bevy, family, lodge, romp (being descriptive of their often playful nature), or, when in water, raft. [8] [9]
Playful South Carolina river otters love to slide, eat and make a mess. They may also be a threat to pets and even young family members. Cute, playful & a potential threat.
A Michigan zoo is mourning the loss of an “excellent father and teacher” after an 18-year-old otter died from a sudden onset condition.. Lucius, an 18-year-old North American river otter, had ...
A medium-sized otter, the southern river otter's body can grow up to 70 cm (28 in) long, with the tail adding about 40 cm (16 in). Body weight averages about 5–10 kg (11–22 lb). Its fur is dark brown on the upper parts and a lighter cinnamon color or can be almost white on the underside.
Rosa was adopted by the Monterey Bay Aquarium in 1999 and served as surrogate mother for a record 15 otters. She outlived the life expectancy for wild southern sea otters.