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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]
The female is shorter than the male. [4] The otter's average body weight is 7 to 12 kg (15 to 26 lb), although occasionally a large old male may reach up to 17 kg (37 lb). [ 5 ] [ 6 ] The record-sized specimen, reported by a reliable source but not verified, weighed over 24 kg (53 lb).
Large male North American river otters can exceed a weight of 15 kilograms (33 lb). [23] It differs from the Eurasian otter by its longer neck, narrower visage, the smaller space between the ears and its shorter tail. [24] Males and female river otters show different non-sexual physical characteristics, [25] with males typically being larger. [16]
The river otter in this video is having a grand old time in the recent snowfall that blanketed the northeast United States. Her name is Brie, and she’s the most recent arrival in her otter ...
“Otters tend to juggle stones more often when they're hungry, so the authors suggest it's a misdirected behavior when they want to eat,” reads the caption on this video of an otter juggling a ...
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).
However, male and female otters have been confirmed by scientists off shores of the Baja Peninsula in a 2014 study, who hypothesize that otter dispersed there beginning in 2005. These sea otters may have dispersed from San Nicolas Island , which is 300 kilometres (190 mi) away, as individuals have been recorded traversing distances of over 800 ...
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.