It also has short, sharp claws. The hairs that make up the outer part of their fur coat are actually clear and hollow, like straws. The skeleton helps provide structural support, allows movement to occur, produces red and white blood cells, stores minerals, and helps protect internal organs. They prefer the sea ice over all other places. The digestive system is very important to the survival of the organism because it helps digest polymers to monomers which then cells can use to help function. Polar bears have also developed clever hunting techniques that allow them to capture seals, their favorite prey.
Should the female not have put on enough fat reserves before the time to den arrives, the embryo will not implant and it is simply reabsorbed by her body. What do polar bears eat? Usually two pups are born and weigh about 1kg 2lbs. Apart from neck muscles the hind limbs are also thought to develop perfectly not only to support the weight when the bear stands on its hind feet only but also for gripping on the sea ice. It is believed to be similar to that of other bear species. After feeding in summer, a pregnant female Polar Bear starts looking for a den, where the cubs will be born and nursed till Spring. The commonest and preferred food of Polar bears are seals, mainly ringed and bearded seals which live all around the Arctic in large numbers. The black colour enables the bear to absorb sunlight energy to warm its body.
Adults are good swimmers, however, small cubs drown easily. The cubs are born in December. We have gathered a complete set of Polar Bear Facts for Kids that will enable you to learn all about this amazing animal. The male takes off on its own after staying with the female for few days. Polar bears rely on sea ice to access the seals that are their primary source of food, as well as to rest and breed. Arctic Ocean, Seas and surrounding Land Masses.
Polar Bears cover vast distances in search of food, swimming across water and coming far inland. The in is likely to discharge faeces in 14 hours. The harsh conditions of the Arctic require that polar bears eat animal protein and fat. Sharp Teeth and Claws — Help in Hunting and Eating 18. Polar bear males frequently play-fight.
The Polar Bear eats the skin and blubber first, then the meat. Polar bears—at the top of the food chain and vital to the health of the Arctic marine environment—are important to the cultures and economies of Arctic peoples. These two systems work together to form the nervous system. This includes the basic framework of the skull, the rib cage, the spinal cord, the arms and legs, and the tail bone. They have got the ability to reduce metabolic rate by half.
Polar Bear Facts for Kids Video. This would keep them from starving until they can find more food. Polar bears are most active the first third of the day and least active the final third of the day. The hind feet are slightly smaller. Their superficial and intramuscular deposits of fat were not dissimilar from those of wild bears, with similar anterior versus posterior and ventral versus dorsal distribution, but they had substantially more adipose tissue intra-abdominally than did wild bears of similar mass, and in particular more deposition in the inner ventral abdominal wall, with a substantially greater number of adipocytes present than expected.
Once the seal, or whatever meal, has been captured, the Polar Bear will bite its head several times to disable it. The pregnant female bear appears to show a progressive form of behavioral thermoregulation which is mainly described by a cyclic establishment of microclimate. Lets get the obvious stuff out of the way first. The reduction in metabolic rate doubles the survival time of a female bear. The typical range of an average temperature in polar bears is around 36. Why are polar bears important? This includes the basic framework of esophagus, stomach, small intestine, large intestine, liver and rectum.
How big are polar bears when they are born? The respiratory system uses the lungs, blood, heart, veins and arteries to take in oxygen, transport it around the body and breathe out carbon dioxide. Polar bears breathe normally and breathe out carbon dioxide. Up to 50% of a polar bears weight can be fat! The average water temperature in the Arctic Ocean during the summer is 29 degrees. Similarly when the bear charges for the prey in short bursts breaths are greater than usual. The Polar Bear identifies the birth lair, and once the Polar Bear hears or smells the pups the Polar Bear will raise on its hind legs and crash down onto the top of the birth lair. Female polar bears experience delayed implantation of a fertilized egg. They have a thick layer of blubber to keep their bodies warm in the cold.
Thick layer of Fat — Insulation and Energy storage 4. They are approximately 30 cm 12 in. And the length of a female polar bear is 190-210 cm. Once again, little is known, however it is believed to be the same as other mammals. Four teats make up two pairs; the front pair anterior is only moderately posterior to the axillae and measures around 4 cm from the midline on both sides. This is good because the retention of heat keeps it permanently warm.