Why don't polar bears eat penguins?
539885
If polar bears had the opportunity to eat penguins, I'm quite sure they would. The reason they don't is because polar bears and penguins live a long distance apart. Polar bears live in Arctic regions of North America, Europe and Asia, whereas penguins live in the southern hemisphere. Some books imply that all penguins live in Antarctica. This is not true - in fact, only two species (the Adelie and emperor penguins) breed on Antarctica. Several species of penguins live around South America, South Africa, Australia and New Zealand and the Galapagos penguins live on the Galapgos islands (surprise!), which are on the equator. This is still a long way from the Arctic. \n\nThe problem about polar bears and penguins relates to many Christmas cards etc, which show polar animals living together, when, in fact, they don't. \n\nI hope that this answers your question. \n\nAll the best \n\nHaley
626518
Polar bears are getting there proverbial cold-asses whupped ! Stranded on ice-floes,mother and cubs are separated,the cubs become easy prey and are subject to starvation. Their population is decreasing fast. Also, I understand that there is,or would be an affect to global warming,..green-house gases...ozone layer...stuff like that  \nand us..\nPeace.
463236
There are penguins in Africa, which belong to genus Spheniscus. However, Antarctic species would suffer from excess heating (they have very insulated bodies) and probably die. \nThe African jackass penguin (Spheniscus demersus) is a small species. In fact, all continental penguins that live in South America, Australia, and even the Galapagos islands are small (smaller size helps to better dissipate excess heat). \nCheck penguin species by geographical area here:\nhttp://www.penguins.cl/penguins-region.htm
667432
Well, since Lyle Lovett had a minor hit called "Penguins are so sensitive to my needs," I'd go with "Delicious" to distance myself from his song.\n\nThey're not delicious, of course. They were always a food of last resort for Antarctic exploreres.
148668
Well, because of their evolutionary history. Penguins (Sphenisciformes) evolved when the appearance of the Earth was quite different, and all southern landmasses formed a supercontinent called Gondwana. After Gondwana split to form Africa, South America and Australia/New Zealand, they went on evolving within the same geographical area. \nPenguins would find it almost impossible to cross the Equator and colonize the Northern Hemisphere, mainly because their adaptations to the cold Antarctic climate prevent their survival in warmer climates (the only genus of penguins that has really colonized warmer areas is Spheniscus: Spheniscus mendiculus lives in the Galapagos islands, and other species occur in southern Africa and Oceania).\nIn addition, as it has been mentioned, the ecological niche of penguins in the Southern Ocean waters is occupied by the Alcidae (auks, guillemots and puffins) in the Northern Hemisphere. \nActually, the name "penguin" was applied to the Spheniscidae because they were found to be similar to the original owner of the name, the extinct Pinguinus impennis (the great flightless auk). In Spanish, the name "pingüino" replaced the original "pájaro bobo" (=dumb bird).\n\nPenguins look superficially similar to auks, mainly because they have similar adaptive traits: black and white color pattern (common in many pelagic animals), upright posture and clumsiness when moving on land. But auks can fly, whereas all penguins are flightless.
1052236
None.  Polar bears, North Pole.  Penguins, South Pole.  Kind of a long swim there just for a bite of penguin, donchya think ;-) ?
346699
Yes. Penguins appear to have very short legs and no knees because only the lower leg is externally visible. Their knees and upper legs are feather covered, hiding them from view. This also means that penguins never get cold knees\nSee\nhttp://www.penguin.net.nz/faq/faq.html
1185357
polar bears are actually in the 'cat' family. they have their own language which is similar to italian. i read somewhere in a magazine that their hair is actually blue or clear or something but the light makes it look white. they use downy to stay so soft and they have food allergies to hotdogs and bird seed. \nthey use charmin to wipe their 'bare bottoms' after they use the loo.
880541
The polar bear is very well capable of killing an alligator given the proper environment so the polar bear would win.While alligators may kill larger prey by grabbing it and dragging it in the water to drown polar bears are too aggressive and strong to let alligators do this to them. \n\nAnyway if you want to have some fun about animal fights, check out this link:\nhttp://underscorebleach.net/jotsheet/2006/06/animal-fights?viarss
330647
There are no polar bears in Antarctica.  There are some seals and sea lions there.
587437
here, use something from this....\n\n\nAnimal life. Only a few insects and other tiny animals spend their entire lives on the Antarctic mainland. The continent's largest land animal is a wingless midge, a type of fly no more than 12 millimetres long. Most land animals live at the edges of the continent. To avoid freezing to death, some lice, mites, and ticks cling to mosses, the fur of seals, or the feathers of birds.\n\nUnlike the continent, the Southern Ocean has abundant wildlife. The most common animal of the ocean is krill, a small, shrimplike creature that feeds on tiny floating organisms. Many other Antarctic animals depend on krill for food, and several countries catch and sell krill as a protein-rich food for people. The squid—a soft, boneless sea animal—also is eaten by many Antarctic animals. In addition, about 100 kinds of fish live in the ocean, including Antarctic cod, icefish, and plunderfish.\n\nSeveral kinds of whales migrate to Antarctica for the summer. Those that feed on krill are blue whales, fin whales, humpback whales, minke whales, right whales, and sei whales. The blue whale is the largest animal that has ever lived. This rare giant grows up to 30 metres long. Antarctic whales that eat fish and squid include killer whales, also called orcas; southern bottlenose whales; southern fourtooth whales; and sperm whales. Killer whales also hunt seals, penguins, and smaller whales.\n\nVarious kinds of seals live in Antarctica. They spend most of their lives in the water, where they swim, dive, and catch food. Most of them nest on the coasts. The Antarctic fur seal nests on nearby islands. The largest seal in the world is the southern elephant seal, which feeds on squid. The males may reach a length of 5 metres. Weddell seals and Ross seals eat fish and squid. Crabeater seals and Antarctic fur seals eat krill. Leopard seals hunt other seals as well as penguins.\n\nDuring the 1800's and early 1900's, hunters greatly reduced the number of whales and Antarctic fur seals. Today, international wildlife laws prohibit or restrict the killing of these animals.\n\nPenguins are the animals most often associated with Antarctica. These birds cannot fly, and they waddle awkwardly on land. But they are skilful swimmers. They streak through the ocean, diving for fish and other food. Six kinds of penguins breed on the continent. Playful Adelie penguins, the most common kind, build nests of pebbles on the coasts. The tall, quieter emperor penguin grows to about 1.2 metres. After the female emperor penguin lays an egg on ice, the male rests the egg on his feet and warms it with the lower part of his belly. Chinstrap penguins, gentoo penguins, king penguins, and macaroni penguins nest on the Antarctic Peninsula and on islands. Rockhopper penguins nest only on islands north of Antarctica.\n\nMore than 40 kinds of flying birds spend the summer in Antarctica. Many types nest on land but spend most of their time diving for food. These birds include albatrosses, prions, and a large group of sea birds known as petrels. Other birds, such as cormorants, gulls, skuas, and terns, return to land more frequently. Some of them steal food from the nests of other birds. Some land birds, such as sheathbills, nest on the peninsula. Others, including pintails and pipits, nest on islands.
835338
Their main defences against the cold are their short overlapping feathers, rounded bodies, small extremities and an ability to store a layer of fat under their skin for insulation.\n Three of the four penguin species breeding in Antarctica avoid the worst of the Antarctic winter by remaining at sea. The emperor penguins however begin their breeding cycle in autumn. The males spend the entire winter huddled in groups while incubating the egg which is kept balanced on top of their feet. This social adaptation reduces the effect of the chilling wind and reduces surface area exposed to the cold.
278416
The North Pole is constitued of ice, unlike the South Pole, there is no land mass underneath the ice.  Global warming causes the ice sheets to melt and break apart.  If a polar bear is on one of these ice sheets that breaks up it has to swim back to a larger, more substantial area to live.  But what is happening is that the bears are drowning before they can reach another ice sheet.
793521
A lot, because they have been known to hybridize: \nhttp://news.nationalgeographic.com/news/2006/05/bear-hybrid-photo.html\n\nIt looks like polar bears are an offshoot of brown (grizzly) bears that have about 99.3% of the same mtDNA. One could make the case that polar bears are not a different species from brown bears, since they are contained within a lineage of brown bears found on certain southern Alaskan islands.
1030075
no, we should pray to PENGUINS! they are real and will save us in the end when they take over the world. they'll worship me for always having faith in them and kill all of you who laughed at me.
1111453
Nice try..! But there are no polar bears at the South Pole or in all of Antarctica. Try again, dude.
971973
Penguins main predator is the seal or sea lion. They are most vulnerable in the water but they are fast swimmers, if they make it back to the ice they are OK, if not they are lunch.\nSeeing as ice is white and penguins are black and white so I don't like their chances of not being seen.