Tree of Life
Plant Flower, Tree
Invertebrate Octopus, Ant, Bee, Butterfly, Spider, Lobster
Vertebrate Fish, Seahorse, Ray, Shark, Frog, Turtle, Tortoise, Dinosaur
Bird, Ostrich, Owl, Crow, Parrot
Mammal Bat, Rabbit, Giraffe, Camel, Horse, Elephant, Mammoth
Whale, Dolphin, Walrus, Seal, Polar Bear, Bear, Cat, Tiger, Lion, Dog, Wolf
Monkey, Chimpanzee, Human
These are organized by a classification scheme developed exclusively for Cosma. More…
walrus : a large gregarious marine mammal (Odobenus rosmarus of the family Odobenidae) of arctic waters related to the seals that has limbs modified into webbed flippers, long ivory tusks, a tough wrinkled hide, stiff whiskers, and a thick layer of blubber — Webster
Walrus is a large flippered marine mammal with a discontinuous distribution about the North Pole in the Arctic Ocean and subarctic seas of the Northern Hemisphere. The walrus is the only living species in the family Odobenidae and genus Odobenus. This species is subdivided into three subspecies: the Atlantic walrus (O. r. rosmarus) which lives in the Atlantic Ocean, the Pacific walrus (O. r. divergens) which lives in the Pacific Ocean, and O. r. laptevi, which lives in the Laptev Sea of the Arctic Ocean.
Adult walrus are easily recognized by their prominent tusks, whiskers, and bulk. Adult males in the Pacific can weigh more than 2,000 kg (4,400 lb) and, among pinnipeds, are exceeded in size only by the two species of elephant seals. Walruses live mostly in shallow waters above the continental shelves, spending significant amounts of their lives on the sea ice looking for benthic bivalve mollusks to eat. Walruses are relatively long-lived, social animals, and they are considered to be a “keystone species” in the Arctic marine regions. — Wikipedia
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Weak Arctic ice sees 56 polar bears descend on...
on December 6, 2019 at 11:33 am
More than 50 polar bears have gathered on the edge of a village in Russia's far north, environmentalists and residents said, as weak Arctic ice leaves them unable to roam.
Failing ice cellars signal changes in Alaska...
on November 25, 2019 at 8:47 am
For generations, people in Alaska's far-north villages have relied on hand-built ice cellars dug deep into the permafrost to age their whale and walrus meat to perfection and keep it cold throughout the year.
Warm ocean water delays sea ice for Alaska towns,...
on November 19, 2019 at 8:54 am
The U.S. research vessel Sikuliaq can break through ice as thick as 2.5 feet (0.76 meters). In the Chukchi Sea northwest of Alaska this month, which should be brimming with floes, its limits likely won't be tested.
Early dispersal for quadrupedal cetaceans:...
on November 9, 2019 at 11:15 am
Scientists have a relatively precise idea about where whales and their closest terrestrial relatives evolved more than 50 million years ago (early Eocene), thanks to the discovery of ancient cetacean fossils in India and Pakistan. Around 45 million years ago, four-legged whales (protocetids) gradually dispersed out of Asia, westward towards Africa and then reached the east coast of North America more than 41 million years ago. Due to the relatively fragmentary fossil record on both sides of the […]
IPCC report paints catastrophic picture of...
on September 26, 2019 at 1:44 pm
The Intergovernmental Panel on Climate Change (IPCC) – the UN body responsible for communicating the science of climate breakdown—has released its long-awaited Special Report on the Ocean and Cryosphere in a Changing Climate.