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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. They have very soft, insulated underfur, which is protected by an outer layer of long guard hairs.
Sea otters, being a known keystone species, need a humanitarian effort to be protected from endangerment through "unregulated human exploitation". [223] This species has increasingly been impacted by the large oil spills and environmental degradation caused by overfishing and entanglement in fishing gear. [224]
Of the 13 different otter species in the world, only sea otters have been spotted making rafts by holding paws. ... Sea otters are on the endangered species list and are protected under the ...
An adult North American river otter can weigh between 5.0 and 14 kg (11.0 and 30.9 lb). The river otter is protected and insulated by a thick, water-repellent coat of fur. The North American river otter, a member of the subfamily Lutrinae in the weasel family (Mustelidae), is equally versatile in the water and on land.
It wasn't until 1977 that the otters were listed as threatened and named a protected federal species. ... come back had the win-win effect of helping manage an invasive species. "The sea otters ...
Mink and river otters have few predators other than occasional predation by coyotes, bobcats, and humans. Minks are one of our native semi-aquatic mammals, along with beavers, muskrats, and otters.
The sea otter is considered a threatened species in Canada and is protected under the federal Species at Risk Act (SARA). [35] In April 2007, the Committee on the Status of Endangered Wildlife in Canada changed its assessment of the sea otter from "threatened" to "special concern." The committee's assessment reflects the ongoing strength of the ...
The Eurasian otter is the most widely distributed otter species, its range including parts of Asia and northern Africa, as well as being spread across Europe, south to Palestine. Though currently thought to be extinct in Liechtenstein and Switzerland , it is now common in Latvia , along the coast of Norway , in the western regions of Spain and ...