Polar Bear Plunge?

This class is called Population and we are currently wrapping up the second unit. In this class, we have discussed Mean, Median, Mode, Range, Max, Min, 1Q, 3Q, and IQR. These are all different math terms that relate to the idea of evolution. Evolution is another idea that we dove into during this term. In this Action Project, we have to create an unusual situation for our animal and decide how it will evolve over the course of a thousand years.

My animal is a polar bear which is scientifically known as Ursus maritimus. In this project, we have to describe how the polar bear will evolve (or die) in there environment when something has been altered. We also have to choose a living relative of our animal and an ancestor.  The relative I chose for my animal is the brown bear. For the extinct ancestor, I chose the short-faced bear. All three of these animals are (or were) large predators. To give you an idea of the three different animals the polar bears weight about 990 pounds and are white. The brown bear's weight up to 1,300 pounds. Finally, the short-faced bear weighs up to 2,500 pounds. The polar bear lives in the Arctic circle in places such as Russia and Alaska. The climate is cold all year round and there is always snow. The Brown bear lives in a much warmer habitat and cant stand the same type of cold as the polar bear. The short-faced bear lived in the grasslands of North America.

My situation is that the habitat of the bears has recent apartment development which is cutting down the animal's habitat. I have to decide which bear will be most likely to survive. I think the polar bear will be most likely to survive because they usually have to most space to thrive. I also think the polar bear will survive over the others is because they have adapted to be able to survive extreme cold or slightly warmer climates such as zoos. So they could adapt better if the new people had an impact on the climate. I also think that polar bears have the capability to change color because modern-day polar bears actually evolved from brown bears.

I don't think the short-faced bear will survive because it is very large and won't be able to chase food. Also, the people who move in around the area will be much more scared of the bears because they weight many times more than the other two bears. I think the key to surviving with humans is for them not to be scared of you. Also, short-faced bears were very aggressive creatures so therefore they would not do well near humans.

The brown bear would do well because it is a lot smaller than the short-faced bear and won't be as scary as the short-faced bear. But this bear is still bigger than the polar bear so it is not quite as nimble as the polar bear. Also, its size will still scare people more than the white polar bear.

In one-thousand years I believe polar bears will look darker than they do now and will have become lighter since only the fastest bears will escape the humans who hunt them. Polar bears also may change their diet slightly to include all types of food. Below is what I think a polar bear will look like in one-thousand years.


Polar bears have evolved a lot over time. They used to actually be brown bears but the farther north they moved the lighter they got. Polar bears also have more streamlined skulls for swimming and wider paws to match. The claws and paws on a polar bear are perfect for keeping traction on slippery ice. That is how the polar bear has evolved from its cousin the brown bear.

Out of the entire data set on the polar bear fat percentage, I think the top three bears that will survive will be the three heaviest bears because they clearly have the ability to catch their prey and like I said earlier being nimble and able to catch prey is important.

Biggest

Smallest

 Below is my dataset for the fat percentage of the polar bears.

40, 45, 46, 47, 47, 47, 50, 50, 55

Below is the Min, Max, Range, Mean, Median, Mode, 1Q, 3Q, and IQR.

Min	Smallest 40
Max	Biggest 55
Range	55-40 15
Mean	Add all numbers then divide by 9. 47.44
Median	Crossed numbers off each end until I reach the middle. 47
Mode	Most common number. 47
1Q	Center of the first half of data. 46
3Q	Center of the second half of data. 50
IQR	50-46 4

Below is the standard deviation

X	_ X-X	_ X-X=	_2 (X-X)
40	40-47.44	-7.44	55.35
45	45-47.44	-2.44	5.95
46	46-47.44	-1.44	2.07
47	47-47.44	-0.44	0.19
47	47-47.44	-0.44	0.19
47	47-47.44	-0.44	0.19
50	50-47.44	2.56	6.55
50	50-47.44	2.56	6.55
55	55-47.44	7.56	57.15

                                                                                                                  Total: 134.19

Here is the box and whisker plot of polar bear fat percentage.

Below is the fat percentages for each of the polar bears in each picture.

40,45,46,47,47,47,50,50,51,55
The NCR is, 273438880
The NPR is, 99225500774400
Permutations are more useful for this because the first three most likely bears to survive are in order from 1-3 so therefore they wouldn't make sense in a combination.

Citations:

“Main Page.” Wikimedia Commons, commons.wikimedia.org/wiki/Main_Page.

“Free Image on Pixabay - Polar Bear, Glacier, Cold, Threat.” Free illustration: Polar Bear, Glacier, Cold, Threat - Free Image on Pixabay - 2376928, pixabay.com/en/polar-bear-glacier-cold-threat-2376928/.

THE POLAR BEAR PROGRAMME, programmes.putin.kremlin.ru/en/bear/multimedia/photos/47408.

Center, NASA Goddard Space Flight. “Polar Bears Across the Arctic Face Shorter Sea Ice Season.” Flickr, Yahoo!, 15 Sept. 2016, www.flickr.com/photos/gsfc/29664357826.

Research, NOAA Ocean Exploration &. “Polar Bear.” Flickr, Yahoo!, 1 Dec. 2016, www.flickr.com/photos/oceanexplorergov/30986547240.THE POLAR BEAR PROGRAMME, programmes.putin.kremlin.ru/en/bear/news.

Michel, Christopher. “Polar Bears on Thin Ice.” Flickr, Yahoo!, 17 July 2015, www.flickr.com/photos/cmichel67/19160462274.

“Free Image on Pixabay - Polar Bears, Wildlife, Snow, Nature.” Free photo: Polar Bears, Wildlife, Snow, Nature - Free Image on Pixabay - 1665367, pixabay.com/en/polar-bears-wildlife-snow-nature-1665367/.