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The sea otter (Enhydra lutris) is a marine mammal native to the coasts of the northern and eastern North Pacific Ocean.Adult sea otters typically weigh between 14 and 45 kg (30 and 100 lb), making them the heaviest members of the weasel family, but among [3] the smallest marine mammals.
Most have sharp claws on their feet and all except the sea otter have long, muscular tails. The 13 species range in adult size from 0.6 to 1.8 m (2.0 to 5.9 ft) in length and 1 to 45 kg (2.2 to 99.2 lb) in weight. The Asian small-clawed otter is the smallest otter species and the giant otter and sea otter are the largest.
The North American river otter (Lontra canadensis), also known as the northern river otter and river otter, is a semiaquatic mammal that lives only on the North American continent throughout most of Canada, along the coasts of the United States and its inland waterways. An adult North American river otter can weigh between 5.0 and 14 kg (11.0 ...
The Seattle Aquarium became the first institution to raise sea otters from conception to adulthood with the birth of Tichuk in 1979, followed by three more pups in the early 1980s. [157] In 2007, a YouTube video of two cute sea otters holding paws drew 1.5 million viewers in two weeks, and had over 20 million views as of January 2015.
Sea otters are much larger than their river-dwelling cousins. Sea otters in California reach 50 to 70 pounds, while those in Alaska can weigh up to 100 pounds.
The Northern Pacific Gallery focuses on organisms from the Bering Sea. [10] Exhibits include the Sea Otter Habitat, home to southern sea otters; [11] the giant Pacific octopus tank; and Diving Birds, where puffins and auklets live. Other species on display include Japanese spider crabs, jellyfish, and sea anemones. [10]
The marine otter (while spending much of its time out of the water) only lives in saltwater, coastal environments and rarely ventures into fresh water or estuarine habitats. This saltwater exclusivity is unlike most other otter species, except for the almost fully aquatic sea otter (Enhydra lutris) of the North Pacific.
Watching sea otters, sea lions, seals, brown pelicans, American avocets, cormorants, egrets, terns and a host of other wildlife from the water is an experience that provides a unique perspective of how the slough is used by the native inhabitants. People are encouraged to keep at least 100 feet of distance between them and wildlife on the slough.