It is always frozen, although the size of the ice cap changes when bits on the edge of it melt during the summer months. Global warming is changing polar habitats, especially in the Arctic. This means that animals like the polar bear and Arctic fox are becoming endangered.
Polar habitats are located on the very top and very bottom of the Earth — the North Pole, which is called the Arctic, and the South Pole, which is the continent of Antarctica. These are called ice caps, and they are located in the very centre of the Arctic and Antarctica. Tundra is land that only defrosts a tiny bit on the top during the summer, but below that stays frozen all the time.
That always-frozen layer is called permafrost. Just like animals in hot deserts have to know how to stay as cool as possible, animals in polar habitats have to know how to stay as warm as possible.
Some ways that animals in polar habitats stay warm are: Developing a thick layer of fat that keeps them cosy Having thick fur all over their body and feet Having thick layers of feathers Burrowing into the ground or into snowbanks like igloos! Migrating south during the coldest months Hibernating sleeping during the coldest months Look at the gallery below and see if you can spot these images: Beware of tight clothing that leaves no room for trapped air, which is an excellent insulator.
Wool, silk and some of the new synthetic fibers like polar fleece retain heat better than cotton. Those who complain, "its not the cold, its the wind," are right.
Wind removes the layer of air your body has heated around you to keep itself warm. A mere four m. The so-called wind chill factor measures the increase in cooling power of moving air, whether its wind that is blowing or you who are moving rapidly and, in effect, creating a wind against yourself.
Wetness also increases the loss of body heat. Air is a very poor conductor of heat, but water is an excellent one. If your skin or clothing gets wet, your body will lose heat much more rapidly.
The following tips should help you be comfortable and healthfully warm in cold weather. Keep them warm and dry. For hands, mittens are better than gloves. For anyone out in the cold, it is far better to wear layers of relatively light, loose clothing than one thick, heavy item. Between each layer there is a film of trapped air which, when heated by your body, acts as an excellent insulator. Synthetic fabrics that spring back into shape after compression are also good.
When damp or wet, polyester down is a better insulator than goose or duck down. Polar fleece is popular and recommended. Select informal, practical attire for your trip that can be worn in layers, including: You should look for a lightweight, roomy, wind and weather-resistant shell with some insulation.
Bright colors are more visible - and thus safer - in polar environments. That is why polar travelers traditionally wear red. Ski pants are suitable if you have them; otherwise, bring any sturdy trousers that can be layered between your long underwear and rainpants. Water resistant "rainpants" of coated nylon are essential for your comfort. Wear them over your regular clothes to keep you warm and dry. Even better is gear made of Gore-Tex and similar fabrics that are waterproof and "breathable".
These materials keep out wind and water without trapping excess heat. Although excellent, these fabrics are expensive and can be damaged by prolonged exposure to salt water. Rinse Gore-Tex in freshwater after exposure to salt. Silk or polypropylene underwear is highly recommended since it keeps you warm without adding bulk. Most people prefer a lightweight version - but this depends on your personal thermostat.
Wool sweaters or a polar fleece jacket of medium weight are recommended. Bring several practical turtlenecks for layering and use around the ship. Keeping your hands warm and dry is a challenge - and important. Thin polypropylene gloves can be worn underneath warm mittens. Thus, you can take off the mittens to operate your camera and still have some protection from the cold.
Its a good idea to bring an extra pair of wool mittens to wear if your other pair gets wet or lost. A warm cap to protect your ears - and a scarf. Bring several pair, since you will inevitably get your feet wet. A pair of pull-on rubber, unlined and completely waterproof boots that are mid calf or higher " high with a strong, ridged non-skid sole is essential for landings.
You may have to step from the Zodiac into icy water up to 10" high on some landings. Also, expect poor footing on the ice and ashore. Do not bring heavy, cumbersome boots that make it difficult to walk.
Boots with waffle soles like those on a hiking boot or running shoe tend to give the best footing. For maximum warmth, wear loose-fitting boots and two pairs of socks.
Try out your boots before the voyage. Reflected glare from water, snow and ice can be intense. Those who wear contact lenses should also bring glasses since salt and wind can irritate the eyes.
Be prepared for rough water. Bring along a signed and dated letter from your physician stating any health problems and dosage of medications, to provide information to medical authorities in case of an emergency.
October and November are early summer when the pack ice is breaking up and the birds, especially penguins, are courting and mating. This is also the time when the penguins are hatching eggs and feeding chicks. In the late summer months of February and March there are terrific whale-watching opportunities and the adult penguins are ashore molting.
Animal Adaptations and Survival by Mandy Barrow. Back to Homework Help Index. How can animals live in such different places in the world? Animals and plants are adapted to the conditions of the habitats in which they live. Animals even live in Antarctica! The animals in Antarctica are dependent on the sea for feeding or are migratory and leave the continent when the winter arrives. What is an adaptation?
The icy continent surrounding the South Pole is called Antarctica. Its name means “opposite to the Arctic,” referring to the region around the North Pole. Antarctica is the fifth in size among the continents, larger than Europe and Australia.
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North America has 4/25 and Antarctica has 1/10 of the dry land. What fractional amount of the dry land is contained within the three remaining continents math annaleonbuenosaires.tk land on Earth’s surface is represented by the seven continents. Europe has 77% of the dry land while Africa has 20%. North America has 4/25 and Antarctica has 1/10 of the dry land. Jan 05, · ☆ Need help with my Antarctica homework ☆? Basically i am doing a project on Antarctica, and i have to write about different aspects of Antarctica, such as the extreme environment, how to preserve the area for the future and recommendations for visitors and how they should behave in terms of annaleonbuenosaires.tk: Resolved.
Overview: A Frozen Desert The continent of Antarctica contains the South Pole, and is the coldest place on Earth. Scientists from around the world have research bases and conduct experiments in a frozen, extremely inhospitable environment where the temperatures are over degrees below zero in . Antarctica is located at the South Pole; the polar bears you mention are at the North Pole. This is the Arctic Circle of Northern Alaska and Canada. If your question was about polar bear behavior in the .