The 13 otter species are members of the Mustelidae, or weasel, family and live in and out of water.For example, river otters reside along streams and waterways in freshwater areas within North America, and endangered sea otter inhabit the coasts along the Northern Pacific Ocean. This shallow-water otter is mainly diurnal, commonly observed sliding on mud banks, foraging in the … PHYSICAL CHARACTERISTICS. Newborn sea otters weigh 3 to 5 pounds. Sea otters come from the northern part of the Pacific Ocean, where it is very cold. This small (3–6 kg [6.6–13.2 pounds]) otter occurs on the Pacific coast from Peru through Chile and Tierra del Fuego in Argentina. Most have sharp claws on their feet except for the sea otter … A sea otter floating on its back with its feet out of the water. A physical adaptation that a sea otter has it that they use their Another physical adaptation that my animal has is that it has very feet to reduce or maximize heat loss. Sea Otter Facts for Kids. Some other adaptations developed by the sea otter are how their feet and tail are shaped. The life cycle and habitat of the sea otter … A sea otter settles in for a nap in a patch of kelp. The sea otter has long whiskers and water-repellent coat that insulates the animal from freezing water. Distribution. Sea Otters. Sea otters have a narrow skull with a wide rostrum and long nasal bones. The sea otter can usually be found in kelp beds, and looks very much like lumps of kelp. The sea otter spends most of its time in the water but, in some locations, comes ashore to sleep or rest. This keeps the cold water away from their skin. 10. Physical Characteristics. The sea otter has a lot of insulating fur to keep warm. The otter is one of the few mammals that use tools. The sea otter’s feet are webbed which are good for picking up speed in the water. Length and Weight: Adult male sea otters weigh 70 - 90 pounds (32 - 41 kg) with some individuals reaching 100 pounds (45 kg). It has short tail and webbed-feet with retractable front claws. This marine mammal can live on land with the same ease as it can live in the water without surfacing for days. Most have sharp claws on their feet and all except the sea otter have long, muscular tails. Females can give birth any time of the year, but most in California have their pup between January and March. These carnivores eat a variety of seafood, such as fish, frogs, crayfish, crabs and mollusks. A male river otter appears to approach females indiscriminately until it finds one that is receptive. Instead, they have an extremely thick coat of fur to keep warm - no animal has thicker fur. The coast of the Pacific, especially to the east and north, is home to the magnificent sea otter. Sea otter teeth are adapted for crushing hard-shelled invertebrates such as clams, urchins, and crabs. *The sea otter is the smallest marine mammal. Sea otters are just as full of interesting characteristics as they are full of cuteness! Fish and Wildlife Service. Adults grow to be about 4.5 feet. Sea otters often float at the water's surface in forests of kelp, or giant seaweed, and entangle themselves to keep from moving in the rolling sea. Sharks and killer whales eat sea otters on occasion. The sea otter is the only member of this genus. Sea otters are a keystone species and play a critical role in the food web of the kelp forest, so much so that even terrestrial species are influenced by sea otter activity. Main Characteristics Sea Otters are a large species of otter. Adult males reach an average length of 4.5 feet (1.4 m) with a typical weight between 50 and 100 lbs (23 to 45 kg), while adult females reach an average length of 4 feet (1.2 m) and typically weigh 45 lbs (20 kg). The marine otter is really a freshwater otter that has learned to occupy marine environments in South America. Otters do not have blubber, instead air is trapped within their fur to keep them warm. *Sea Otters love to play around and even play games such as tag. Sea otters use rocks to remove prey from their shells. At about 4 or 5 years old, female sea otters typically have their first pup after a four-to-five-month-long pregnancy. Males can weigh up to 70 lbs. Some construct waterslides, for example. The Sea Otter has a small round face that is absolutely adorable. On the other hand, the male rubs his pouch against a solid material, which is usually a rock or a shell, this makes easier the expulsion of hatchlings. Sea otters rely on their high metabolism and their plush coat to keep warm. Fur: A sea otter's fur is the thickest and finest of any mammal. Here are five fun facts you otter know: Sea otters have the densest fur in the animal kingdom, with up to one million hairs per square inch of their body! Wild sea otters typically have a lifespan between 15 and 20 years. Otters do not have blubber like other marine mammals, such as whales. One which forms a waterproof outer layer and the under fur is very dense to keep the animal insulated. A sea otter pup’s fur traps so much air that they cannot dive underwater. They have pronounced canine teeth. Asian small-clawed otter is found in freshwater wetlands and mangrove swamps, and at higher elevations, it is associated with fast-flowing, rocky streams. Their facial vibrissae (whiskers) may reach 10.2 cm (4 in) in length but are usually worn down to about 5 cm (2 in). Sea Otter’s tails are smaller than other otters to reduce surface area. *There are 13 species of otters. When swimming, look for a body with sleek, dark fur instead of blubber. The sea otter is one of the smallest marine mammals, but one of the largest members of the family Mustelidae, a group that includes skunks and weasels among others. 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. A male approaches a female and attempts to embrace her with his forelegs or … *Sea Otters unlike other otters capture food with their flexible fingers and grab food with their hands. Sea Otters and Polar Bears: Marine Fissipeds Two Alaska marine mammals are neither pinniped nor cetacean: the polar bear and sea otter. Like their littler stream otter cousins, the sea otter can walk and live on the land yet it isn 't remarkable for sea otters to spend their lives solely in the water. The fur on the surface of an otter's coat is waterproof. As top predators, sea otters are critical to maintaining the balance of nearshore ecosystems, such as kelp forests, embayments and estuaries. The characteristics of this birth leads us to conclude that this means an exhausting physical effort for the father, to finally give birth his offspring. Sea otter fur is the densest of any mammal at about 1 million hairs per square inch (We have 100,000 hairs on our entire head). The sea otter, Enhydra lutris, is about three feet long, with a tail that adds approximately one more foot to its length.In shape it is like a river otter, which is slightly smaller in body but has a longer tail. Sea otter life cycle: The otter does not go through stages to become an otter like some animals, for example a frog. They have roughly 850,000 – 1,000,000 hairs per square inch on their body. As a sexually dimorphic organism, male sea otters are larger in size than the females of this species. Both animals have webbed feet, though the back feet of the sea otter are enormous by comparison, which is important for its life in the ocean. Mating Behavior. 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