Koko

My animal is the Arctic polar bear. Its scientific name is Ursus Maritimus. The first part of the name, Ursus, comes from Ursidae, which is the bear family that the polar bear belongs to. The second part of the name in latin is sea. So technically, Ursus martimus means Sea bear. I chose this animal because it seems interesting and I think that it would be easy to research.
sources:
UCN/SSC PBSG Polar bear specialist group. "Frequently Asked Questions about

polar bears." IUCN/SSC PBSG Polar bear specialist group. N.p., 13 Mar.

2010. Web. 29 May 2012. <http://pbsg.npolar.no/en/faq.html#faq1>.

Gardens ANIMALS, 31 May 2012. Web. 29 May 2012. <http://www.seaworld.org/ SeaWorld, and Busch Gardens ANIMALS. "Polar bears." ANIMALS. Sea World/Busch
animal-info/info-books/polar-bear/scientific-classification.htm>.


Picture of Polar bear:
Unknown.jpeg

Questions:
Is the fur if a polar bear camouflage?
Do polar bears hibernate and when?

General information:
- The arctic polar bear lives in the north pole.
- Polar bears live for about 25-30 years.
-Polar bears eat mainly seals
-They are the largest meat eater in the world
-Polar bears dont hibernate, but pregnant females den up for winter
-Males are about 900lbs in weight and females about 500lbs in weight

Polar bear's Diet
Seals (ringed seals and bearded) -main food source
carcasses of whales (beluga, grey, and bowhead whales)
carcasses of walruses and narwals
Beluga whales and walruses (polar bears can hunt them down.)
When other food isn't available, they eat muskox, berries, fish, eggs, kelp, shellfish, small rodents, and reindeer.

Source:
WWF. "Polar Bear Diet." WWF. WWF, n.d. Web. May 2012.
<http://www.worldwildlife.org/species/finder/polarbear/diet.html>.


Organisms in polar region
Seal-carnivore-secondary consumer-eats fish
Walrus-carnivore-secondary consumer-eats fish
fish-omnivore-secondary consumer
birds-omnivores-secondary consumer
narwal-carnivore-secondary consumer
whale-carnivore-secondary consumer-eats plankton
plankton-herbivore-primary producer
krill-omnivore-secondary consumer

Source:
BBC. "Polar." BBC. BBC, 2012. Web. May 2012. <http://www.bbc.co.uk/nature/
habitats/Polar_region>.


Decomposers:
A decomposer is an organism that eats dead bodies, and are important because otherwise dead bodies would be piling up. They start eating us when our immune system breaks down, and they are on us all the time, waiting until our immune system breaks down. They wait until our immune system breaks down because our immune system makes our skin fight off decomposers. Some decomposers, like maggots, lay their larvae on a living being which shall eat the living being from the inside.
A few examples of decomposers are maggots, worms, micro-organisms (bacteria) and fungus.

220px-Amanita_phalloides_1.JPG
Fungus
Fungus

240px-Regenwurm1.jpgWorm

bacteria.jpegMicro-oranism (bacteria)



Difference between Parasites and Decomposers: A decomposer is something that eats dead organisms when their immune system shuts down. A parasite is an organism that benefits from another organism and brings that organism harm.

Decomposers in polar bear's habitat:
Bacteria
Source: http://www.marinebio.net/marinescienc

Food web:
A food chain is a system that links organisms together because they eat each other. A food web is a web with many different interconnected food chains. If a species grows extinct, it may lead to serious consequences to all the organisms in the food chain it is in. In a food chain/web, there are multiple groups: Power sources, producers, primary consumers, secondary consumers, tertiary consumers and decomposers.
Power sources are sources that give power/energy to a producer. An example is the sun. The sun powers producers like grass, because grass photosynthesize, which means that they make their energy of their own powered by the sun.
Producers are organisms that, as I mentioned previously, photosynthesize and make their own energy. They are usually eaten by the primary consumers.
Primary consumers are the organisms that eat the Producers. Usually they are herbivores because they eat producer.
Secondary consumers are organisms that eat the primary consumers. Usually they are Carnivores because they eat other meat.
Tertiary consumers are organisms that eat the secondary consumers. Like secondary consumers they are usually carnivores.
Source:
Brain POP. Food chains. BrainPOP. BrainPOP, n.d. Web. May 2012.
<http://www.brainpop.com/science/ecologyandbehavior/foodchains/>.


Picture of Food web:
images-7.jpeg

Picture of food chain:
images-6.jpeg

Picture of my food web:
Photo_on_2012-05-10_at_09.10.jpg



Polar bear's habitat:

The arctic polar bear lives on the north pole. The north pole exists of mainly water and Ice, and is located on the norther most place on the the earths surface. In the north pole, half of the year it is always dark and half of the year its always light. The average there is in winter is -43 degrees C to -26, and in summer its about 0 degrees C.
Sources:
Rosenberg, Matt. "North pole." About.com. The New York Times Company., 19 Aug.
2007. Web. 30 May 2012. <http://geography.about.com/od/
learnabouttheearth/a/northpole.htm>.

Adaptations:
Cold
Polar bears adapt to the cold by having hollow fur and having a thick layer of fat (up to 11 cm thick) the hollow fur allows their warm bodies to be insulated against the cold, and the layer of fat insulates it against the cold. The hollow fur is external, and the fat is internal.
Slippery Ice and snow
Polar bears adapt to the slippery ice because of long, stiff hair between the pads of his feet which give him grip. For the snow it has wide, large paws. These adaptions are external.
Icy water
To adapt to the icy water, they have their hollow fur and the hair between the pads of its feet, but also round ears to prevent water from coming in its ears. These adaptions are external.
Catching prey
Polar bear's fur is white for camouflage, sothat their prey can't see them easily. They also cover up their nose to become entirely white. This answers one of my questions that I asked myself previously.



Screen_shot_2012-05-15_at_9.02.31_AM.png



Sources:
"Adaptations of the Polar Bear." Adaptations of the Polar Bear. Tripod, n.d.
Web. May 2012. <http://adaptations.tripod.com/polarbear.html>.
Barrow, Mandy. "Arctic conditions." Science. Woodlands junior school, n.d. Web.
May 2012. <http://www.woodlands-junior.kent.sch.uk/homework/adaptations/
polarbears.htm>.

Polar bear habitat pictures:
external image images?q=tbn:ANd9GcT7mctpGIdX624kxxceTxP9nvytMXzlTTfLY1E174n_47vWJtVHexternal image images?q=tbn:ANd9GcRAPy_zKn3eIdpHC-_MO2-B_1oaFSAyYdFnyO0HTBHK3zVUAaFHexternal image polar_bear_distribution.jpg


Environment definition: A place or habitat with its own conditions where living and non-living organisms live.
Eco system definition: A system of living and non-living things interacting

Polar bear's ecosystem: Non-living things: Ice, water Living things: Polar bears, seal,walrus,fish,birds,narwal,whale,plankton,krill, arctic fox

Polar bears are diurnal. Also, they technically live in 2 seasons, summertime and wintertime. In summertime its warmer and in winter its colder. What poolar bears do to prevent overheating in summertime for example, is that they move slowly and rest often.

Polar bears have a symbiotic relationship with parasites that bring them illnesses. A parasite that polar bears easily get infected by is the parasitic worm Trichinella. They get infected by this by eating infected seals.
Source:
Busch Gadens, and Sea World. "Polar Bears." Polar Bears. Busch Gardens/Sea
World, n.d. Web. May 2012. <http://www.seaworld.org/infobooks/polarbears/
pblongevity.html>.

Polar bears can only make offspring with each other, and not with a different organism. Also, polar bears have their own genes different than any other organism. This makes it a species.
Source:
Globio. "Spiecies." Globio. Globio, n.d. Web. 29 May 2012.
<http://www.globio.org/glossopedia/article.aspx?art_id=34>.

Defenition of vertebrate and invertebrate:
Vertebrate animals are animals with a spine or spinal column. This means that their nerve chord is enclosed by vertebrae. All mammals are classified as vertebrate. This is the opposite for invertebrates, because invertebrates do not have a backbone or spinal column.
Sources:

Kidport. "The Animal Kingdom." Kidport Reference library. Kidport, n.d. Web. May
2012. <http://www.kidport.com/reflib/science/animals/animals.htm>.

Diffen. "Invertebrate vs Vertebrate." diffen. diffen, n.d. Web. 29 May 2012.
<http://www.diffen.com/difference/Invertebrate_vs_Vertebrate>.

Animal Classification

Animal Vertebrate or invertebrate? Type of living thing
Polar bear
Vertebrate
Animal
Walrus
vertebrate
Animal
Fish
Vertebrate
Animal
Birds
Vertebrate
Animal
Narwhal
Vertebrate
Animal
Whale
Vertebrate
Animal
Plankton
Invertebrate
Micro-organism
Krill
invertebrates

Seal
Vertebrate
Animal
Bacteria
Invertebrate
Micro-organism