Otters

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The Sea otter or Kalan (Enhydra lutris) is a large otter native to the North Pacific, from northern Japan and Kamchatka east across the Aleutian Islands south to California.

The sea otter is capable of living exclusively in the ocean. The sea otter inhabits near shore environments where it can quickly dive to the sea floor to forage. Sometimes they rest in coastal kelp forests, often draping the kelp over their bodies to keep from drifting away. Most otter species have at least one permanent burrow or den by water. The burrow's main entrance may be under water. River otters dig their own burrows. They are found most often in areas with protection from the most severe ocean winds, such as rocky coastlines, thick kelp forests, and barrier reefs. Sea otters can also live in areas where the sea floor consists primarily of mud, sand, or silt.

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Please see the related link below for a picture of a river otter:

yes of cause they do :)

No known species of otter is presently extinct, although several in the past were believed to be extinct. These include the sea otter, as well as most recently, the Hairy-nosed otter, which was rediscovered in Southeast Asia in 2005.

There are several bird species that are found in River Thames, including The Mute Swan, The Canada Goose, The Mallard Duck, The Greylag Goose, The Great Crested Grebe, The Coot, The Grey Heron and The Moorhen. You can also find mammals such as The Water Vole, The Otter and The American Mink.

otters spray and bite

by far polar bear because the live in much colder weather then sea otter

No they do not. That's why they come up every once in a while.

Mammals are animals that MUST breathe air to survive. All otters areammals

There are many types of river otters, and some are social while others are not. The Giant River Otter from the Amazon lives in packs, as do North American river otters, female Southern river otters, (males are solitary). The European river otter is extremely territorial.

If a sea otter get hold of something with a hard shell it will float on its back with the 'hard-shelled thing' on its belly and smash at it with a rock it has also procured. They're quite cute to watch doing this. After the thing has been smashed open then they eat it with their mouths as you would expect.

It differs by where the otters are. But the predators are great white sharks, killer whales, and sea lions.

It varies on the size of the pod. There can be hundreds to thousands in a large raft. Often females and males stay in separate groups, although the alpha male is not far from the females and pups.

How big an otters tail really depends on which species you are referring to. Through the different species, the tails can range anywhere from 30 to 51 cm.

It does not really matter what source of water they are living in. As long as the water has a steady food supply and good conditions for them they will live there. Otters have been known to live in cold climates and warm. So food and the cleanliness of the water is really what counts for them.

River otters have much longer tails and a longer head than the sea otter. Sea otters have have large webbed hind flippers. When at the surface, river otters tend to swim on their bellies. Sea otters float on their back. River otters would be more likely to climb on a log or onshore to eat. Sea otters tend to eat their food in the water while floating on their backs, with the food on their stomach. River otters are on land frequently. Sea otters almost never leave the water. River otters tend to be all brown. Adult sea otters' heads lighten throughout their lifetime, becoming quite blond.

In addition to the above, Sea Otters often gather in large numbers called "rafts" while river otters are more solitary and are usually only seen in groups of 4 or less (mom and pups). River otters can be found in streams, rivers and coastal salt water areas.

This is in response to the answer below which is not correct.

sea otters live in the sea otters live in rivers

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They are a vital part of the ocean's ecosystem. Without otters, sea urchins would have no predators and would overpopulate and likely destroy kelp forests, which are a food source for urchins.

Freshwater otters get their water from freshwater sources. Thus, species like the North American river otter (Lontra canadensis), the Eurasian river otter (Lutra lutra), and the Asian small-clawed otter (Aonyx cinerea) drink from the same rivers and lakes in which they swim. The sea otter, on the other hand, is specially adapted to its saltwater habitat. The sea otter's large kidneys process the saltwater that the otter drinks from the ocean, allowing the otter to live without need of freshwater.

Otters can have up to 192 babies in their whole lifetime which is between 11 - 16 years but not necessary all the babies survive. They can have up to 2 litters a year.

Baby otters are born with eyes closed but open them at about 40 days old and are able to swim properly at about 80 days.

so 192 babies divided by 365 days in year

= 0.5260273973 a day C:

One of the most important things polar bear cubs have to learn is how to hunt seals, by sniffing for their dens and then pouncing on the ice until it breaks, so that they can get to the seal pup inside. They learn this by watching their mother. Then, they imitate it.

It has a marine biome or ecosystem.

Wetlands and marshes.

they can be found is caves that are empty or they can come out to the open for food (fish) by Shannon Holmes

Well yeh, the lion/tiger is slightly bigger than the jaguar, there has been records of fights between the jaguar and a lion and jaguar has been the winner, so maybe a tiger, but other than that not really any, as also lions have been recorded to win tigers soo, depends on male/female size/age.