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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.
As a 17-year old male sea otter, Riro was roughly the age of a 70-year old human. [2] On 27 December 2024, Riro began losing his appetite and was taken off exhibit. His condition worsened and he died on 4 January 2025. [8] With Riro's death, Marine World Uminonakamichi's sea otter exhibit, dating back to 1989, came to an end. [1]
A sea otter using a rock to break open a shell. The sea otter, Enhydra lutris, is a member of the Mustelidae that is fully aquatic. Sea otters are the smallest of the marine mammals, but they are also the most dexterous. Sea otters are known for their ability to use stones as anvils or hammers to facilitate access to hard-to-reach prey items.
Sea Otters can swim up to six miles per hour and hold their breaths for up to four minutes. They use these skills to dive as deep as 330 feet beneath the surface. 4.
Tool use by sea otters; Tungabhadra Otter Conservation Reserve This page was last edited on 25 May 2023, at 16:35 (UTC). Text is available under the Creative Commons ...
Enhydra is a genus of mustelid that contains the sea otter and two extinct relatives. It is the only extant genus of the bunodont otters group, referring to otters with non-blade carnassials with rounded cusps. [1] Sea otters probably diverged from other otters during the Pliocene, approximately 5 mya. [2]
Sthenictis sp. (American Museum of Natural History). Mustelids vary greatly in size and behaviour. The smaller variants of the least weasel can be under 20 cm (8 in) in length, while the giant otter of Amazonian South America can measure up to 1.7 m (5 ft 7 in) and sea otters can exceed 45 kg (99 lb) in weight.
Adult river otters generally measure between 35 to 55 inches in length, about one-third of which is their tail, detailed SCDNR. Male otters generally weigh between 15 to 20 pounds, with females ...