They live up to 40 years in the wild 3. Both male and female walrus have large tusks They use their tusks for cutting through ice and getting out of the water, as well as defence and for males, to demonstrate dominance. Scientists recognize two subspecies of the walrus. The worldwide population of the walrus is estimated at , The largest walrus herd in Canada occurs in Foxe Basin. Orcas and polar bears are their only natural predators.
They live in shallow water but dive deeper in search of food Walrus can dive up to 90 m and stay underwater for long periods of time — up to 30 minutes! Want to see walrus this year? Mergl, E. Gehring, N. Sundar, G. Velmurugan, O. Kwok, M. Grigg, C. Su, D. Toxoplasmosis in captive dolphins Tursiops truncatus and walrus Odobenus rosmarus. Journal of Parasitology , Feldhamer, G.
Thompson, J. Fishbach, A. Jay, J. Jackson, L. Andersen, G. Sage, S. Molecular method for determining sex of walruses. Garcia, L. Practical Guide to Diagnostic Parasitology. Jay, C. Marcot, D. Projected status of the Pacific walrus Odobenus rosmarus divergens in the twenty-first century. Kastelein, R. Mukhametov, L. Siegel, O. Lyamin, J. Behavioral sleep in the walrus. Nielsen, K.
Nielsen, R. Serologie evidence of Bruceila spp. Reijnders, P. Brasseur, J. Boyd, J. Harwood, D. Lavigne, L. Skoglund, E. Lydersen, O. Grahl-Nielsen, T. Haug, K. Fatty acid composition of the blubber and dermis of adult male Atlantic walruses Odobenus rosmarus rosmarus in Svalbard, and their potential prey. Udevitz, M. Jay, A. Fischbach, J. Modeling haul-out behavior of walruses in Bering Sea ice.
A database of vertebrate longevity records and their relation to other life-history traits. To cite this page: Baker, H. Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.
Odobenus rosmarus walrus Facebook. Geographic Range Walruses Odobenus rosmarus are found in Arctic regions of the world. Breeding season Walruses breed between January and April. Range number of offspring 1 to 1 Average number of offspring 1 AnAge Average gestation period 15 months Average gestation period days AnAge Range weaning age 12 to 36 months Range time to independence 2 to 3 years Average time to independence 3 years Range age at sexual or reproductive maturity female 5 to 7 years Average age at sexual or reproductive maturity female 7 years Range age at sexual or reproductive maturity male 7 to 10 years Average age at sexual or reproductive maturity male 10 years Female walruses care for their pups until the pups reach three years of age.
Kastelein, Communication and Perception Walruses have small eyes that are adapted to the cold environment. Their blubber keeps them warm in frigid waters. These animals can also slow their heart rates, which allows them to live in freezing temperatures, according to National Geographic. Walruses are carnivores, but they aren't ferocious hunters. The walrus' favorite food is shellfish. They dive underwater and use their whiskers to detect the shellfish in the dark waters of the ocean.
According to the Smithsonian Institution's Arctic Study Center , a walrus can eat up to 4, clams in one feeding. When food is hard to come by, walruses will also eat the carcasses of dead seals. Female walruses give birth to their young, called calves, during their migration in the springtime. After a gestation of 15 to 16 months, the female will give birth to one calf. Very rarely, walruses will give birth to twins. Calves weigh around to lbs. As soon as the calf is born, it can swim.
It will swim along with its mother for the first three years of its life. Then, at 3 years old, the male calves will go off to live with the male herd. Humans are historically the greatest hunter of the walrus. During the - s, the Atlantic population of walruses was hunted nearly to extinction. The walrus was hunted for a range of valued parts:.
Currently, walrus hunting is illegal except for most people except indigenous groups for whom the animal still represents a major life resource. Walrus tusks are actually canine teeth that keep growing throughout its lifetime.
Walruses use their tusks in the following ways:. RVR At the end of a long Arctic winter, spring is starting to awaken. JNSH The focus of this voyage is shore hiking. Hikers can choose hikes that best suits their fitness and ability level. HDS The focus of this voyage is shore hiking. HDS Start your North Spitsbergen cruise with a trek around historic Longyearbyen, then join our expedition to the north of the island to take in the fantastically beautiful landscapes, the thousands of seabirds, and of course the star of the show, the polar JNSH Start your North Spitsbergen cruise with a trek around historic Longyearbyen, then join our expedition to the north of the island to take in the fantastically beautiful landscapes, the thousands of seabirds, and of course the star of the show, the polar We have a total of 90 cruises.
English German Dutch Spanish. My profile Travel Agent. Helena Visited places on St. All highlights. Home Highlights Walrus. Walrus Spending two thirds of their lives in the water, these "tooth-walking sea horses" cuddle their calves in the same fashion as human mothers Walrus cruises.
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