Why don't penguins get frost bite in their feet?
925346
It's a mixture of the above answers: the penguin does control the flow of blood to the feet, by varying the diameter of the vessels carrying blood into the feet. When it is cold they reduce the flow (this means less blood to heat up when on its way back into the body). The second method of control is by way of the countercurrent heat exchangers at the top of the penguin's legs. The blood vessels break into many smaller vessels that are very close to similar small vessels coming back up into the body. All the heat flows from the warm blood into the cold, meaning little warmth is carried down into the feet and lost to the environment, keeping the heat in the penguin! The feet are a degree or two above freezing, which is just above what they would get frostbite at, but still minimises heat loss.
717949
They are "cold blooded."  Unlike warm blooded mammals like humans, flies and other insects do not produce their own heat.   They need to get heat from outside sources, like the sun or the air.  When it's cold, they move slower because their whole physiology has slowed down.
651288
There is little precipitation at the Antarctica because of the low temperatures. Cold air does not hold as much moisture as hot air. In the winter for exsample the humidity is lower than in the summer ( humidity is scale of how much moisture is in the air). Moisture in the air rises and settles in the clouds to produce snow or rain. When the temperature stays as cold as in does in Antarctica little moisture is present to create snow or rain. The snow that is on the ground in pictures and movies that you may see has been there for sometime. There is stays so cold that when snow does fall it takes it a long time to melt. I hope this was helpful.
536595
Salt doesn't melt ice, it reduces the temperature needed to melt it. In Antarctica the temperature is so low, that even all salt water around doesn't help melting it.
332808
Living micro-organisms have been found flourishing deep within the ice of Antarctica. Since ice freezes at 32 degrees Fahrenheit, I expect that's as cold as you can get and still allow the little beggars to move about, ingest nourishment and procreate. These are simple single-celled animals. Microbia.
145577
Crocodiles tire relatively quickly, and polar bears are well used to wearing down prey. They repeatedly strike at belugas who are trapped in the ice and are forced to surface at a single opening. They do this until the beluga is exhausted and dies.\nTemperature of the water is important for the crocodile , too cold and it would go into a torpor and die. If the water is not shallow enough, say that it is up to the bears shoulders, this would impede the bear and give the advantage to the croc.
646374
Basically it works just the same as in other birds. It's a closed system, with a 4-chambered heart, and very efficient pulmonary circulation.\nIn addition, penguins have a special configuration of their blood vessels called _countercurrent_, in which the arteries (with oxygenated blood, extending toward the body surface) and the veins (with deoxygenated blood, going toward the body core) run close to each other, so that the heat from the body passes from the arteries to the veins before reaching the body surface. Thus, this heat is conserved instead of being lost at the body surface.\nThese structures are not found randomly throughout the penguin's body, but especially at their feet, where they represent adaptations for life upon frozen ground. \n\nEmperor penguins  in particular also have adaptations that allow them to dive to great depths. See more at this site:\nhttp://people.eku.edu/ritchisong/birdcirculatory.html
165018
Its their feathers keeping them warm, but havent you been wondering about something else?\n\nWhy is it that ducks feet dont freeze to the ice?? Huh??? :p
403561
yes penguins have sex! no they dont suck it, there feet are made for the ice so no, an yes all animals have sex organs!\ngo to the site below! to see them in action!
910722
a penguin with 1 foot
154032
The Following Text Is Taken From Wikipedia..:\n\n"There are either 17 or 18 known species worldwide, depending on whether the two Eudyptula species are counted as distinct. Although all penguin species are native to the southern hemisphere, they are not, contrary to popular belief, found only in cold climates, such as Antarctica. In fact, only a few species of penguin actually live so far south. Three species live in the tropics; one lives as far north as the Galápagos Islands and will occasionally cross the equator while feeding.\n\nThe largest species is the Emperor Penguin (Aptenodytes forsteri): adults average about 1.1 meters (3 ft 7 in) tall and weigh 35 kilograms (75 lb) or more. The smallest penguin species is the Little Blue Penguin (also known as the Fairy Penguin), which stands around 40 cm tall (16 in) and weighs 1 kilogram (2.2 lb). Generally larger penguins retain heat better, and thus inhabit colder regions, while smaller penguins are found in temperate or even tropical climates. The rarest type of penguin is the yellow-eyed penguin (megadyptes antipodes) and is probably the most ancient of all living penguins. adults average about 65cm tall and the adults average weight is 5-6 kilograms\n\nMost penguins feed on krill, fish, squid, and other forms of sealife caught while swimming underwater. They spend half of their life on land and half in the oceans.\n\nDue to the gender ratio, penguins are one of the few species on the planet whose females fight over single males during mating season, due to the comparatively low number of male penguins.\n\nOne of the most baffling forms of behavior of the penguin comes when a mother loses her chick, either due to its being unable to endure its first storm, or due to other reasons such as predators. When a mother loses its chick, they have been known to actually attempt to steal another mother's living chick- presumably in order to deal with the grief of the loss. This behavior has amazed scientists, as it is an emotional outburst opposed to an instinctual behavior; something many animals do not exhibit when losing their young. Many have used this as prime evidence for decades that many animals have near human-like emotions and feelings, often for the sake of animal rights. Interestingly, the other females in the penguin groups dislike this behavior and will help the defending mother keep her chick. Another fact about penguins is that they are one of the few species of birds that seem to have no fear of people. In fact, they have been known to approach groups of explorers without the slightest hesitation."\n\nFor More, See The Link(s) Below..
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.
594157
Penguins are birds (Aves) in that they have feathers, lay eggs and have forelimbs modified as wings (but in this case used for swimming). They also share all the other characteristics of birds, being warm-blooded (around 40 deg C) and having a reduced reproductive system (one functional ovary or testis).\nLike all other birds, penguins have feathers. Penguin feathers are short, overlapping and densely packed. The outer part of the feather is waterproof while the inner down section traps an insulating layer of air, keeping the penguin warm in the sometimes freezing water. Unlike those of flying birds, the feathers on a penguin wing are very short.
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.
60834
Yes, they can run up to 45 mph.  Penguins can swim at 40 mph.
263149
THeir fur is actually colorless, it absorbs light to heat their bodies.  It works so well, that they frequently have to swim in freezing waters to cool down or roll around in the snow.  They aren't very active either becasue then they would overheat.
804863
Some penguins mate for life, while others for just one season. They generally raise a small brood, and the parents cooperate in caring for the clutch and for the young. During the cold season on the other hand the mates separate for several months to protect the egg. The male stays with the egg and keeps it warm, and the female goes out to sea and finds food so that when it comes home, the baby will have food to eat. Once the female comes back, they switch.