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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…
polar bear : a large creamy-white carnivorous bear (Ursus maritimus synonym Thalarctos maritimus) that inhabits arctic regions — Webster
Polar bear (Ursus maritimus) is a hypercarnivorous bear whose native range lies largely within the Arctic Circle, encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It is a large bear, approximately the same size as the omnivorous Kodiak bear (Ursus arctos middendorffi). A boar (adult male) weighs around 350–700 kg (772–1,543 lb), while a sow (adult female) is about half that size. Although it is the sister species of the brown bear, it has evolved to occupy a narrower ecological niche, with many body characteristics adapted for cold temperatures, for moving across snow, ice and open water, and for hunting seals, which make up most of its diet. Although most polar bears are born on land, they spend most of their time on the sea ice. Their scientific name means “maritime bear” and derives from this fact. Polar bears hunt their preferred food of seals from the edge of sea ice, often living off fat reserves when no sea ice is present. Because of their dependence on the sea ice, polar bears are classified as marine mammals — Wikipedia
Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.
- The next generation of biodiversity conservation...on October 22, 2020 at 6:00 pm
Nearly three decades have passed since world leaders agreed to reverse biodiversity loss. It hasn't gone according to plan. This year, the current decade of biodiversity conservation targets are set to expire well short of the goal line. The world needs to change strategies if we are to have any hope for biodiversity. A global group of scientists has provided advice for a more successful replacement scheme, a quite literal "next-generation" plan being hashed out by the Convention on Biological […]
- Unique view into the 'new Arctic': International...on October 13, 2020 at 3:16 pm
Bremerhaven/Leipzig. With the return of the Polarstern, the largest Arctic expedition of all times has come to a successful end. For more than a year, the German research icebreaker traveled in 5 cruise legs with more than 400 people from 20 countries to investigate the epicenter of climate change more precisely than ever before. At the end of the expedition, which cost around 140 million euros, the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), came to a […]
- Biggest North Pole mission back from 'dying...on October 12, 2020 at 10:17 am
Researchers on the world's biggest mission to the North Pole returned to Germany on Monday, bringing home devastating proof of a dying Arctic Ocean and warnings of ice-free summers in just decades.
- Arctic odyssey ends, bringing home tales of...on October 9, 2020 at 7:38 am
The biggest Arctic expedition in history will return to the German port of Bremerhaven on Monday after a year-long mission, bringing home observations from scientists that sea ice is melting at a "dramatic rate" in the region.
- Some polar bears in far north are getting...on September 23, 2020 at 4:28 pm
A small subpopulation of polar bears lives on what used to be thick, multiyear sea ice far above the Arctic Circle. The roughly 300 to 350 bears in Kane Basin, a frigid channel between Canada's Ellesmere Island and Greenland, make up about 1-2% of the world's polar bears.