california sea otter kingdom: animalia phylum: chordata class: mammalia

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California Sea Otter

California Sea OtterKingdom: AnimaliaPhylum: ChordataClass: MammaliaGeneral CharacteristicsCan close nostrils and small ears underwaterLong whiskers to detect vibrations in murky waterRetractable clawsUsed to help groom, locate and capture prey underwater, and use tools

General CharacteristicsDense fur due to lack of blubber layer for warmthHind feet are webbed and flipper-likeHelp propel through the water along with lower bodyLong, flattened tail used as a rudderAlso aids in propulsionParticularly highly sensitive to high-frequency soundsGeneral CharacteristicsUnique teeth for a mammalBlunt, used for crushing rather than sharp for tearing

ReproductionPolygynous- males have multiple female partnersFemale otters can give birth at any time during the yearTakes 4 months for fetus to fully developDelayed implantation (2 months) almost always occurs

PreyMust consume 25% of body weight each day in prey to survive!A 75 pound sea otter can eat up to 1,500 sea urchins a dayOr about 25 pounds of seafoodPreySea urchins, Abalone, Crabs, Mussels, Clams, Marine snails, Marine worms, Sea stars, and SquidEat at least 50 species of benthic invertebrate

PredatorsGreat white sharks are the main predators of California Sea OttersHumans and Killer Whales are also predators

VideosInteresting FactsSea Otters hold hands in the waterNewborn pups cannot sink or diveSea Otters have built in pockets under their armsA group resting together is called a raftOne of the few animals that use tools to eat their food and open shells


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