bibliography

https://www.statista.com/statistics/254231/number-of-visitors-to-the-yellowstone-national-park-in-theus/#:~:text=Yellowstone%20National%20Park%20in%20the%20United%20States%20%E2%80%93%20the%20country's%20oldest,year's%20total%20of%204.12%20million.

https://www.nationalparks.org/exploreparks/yellowstonenationalpark#:~:text=Yellowstone%20National%20Park%20sits%20on,%2C%20grizzly%20bears%2C%20and%20wolves.

https://yellowstone.net/intro/introduction-to-yellowstone/weather-and-climate/

https://www.nps.gov/parkhistory/online_books/yell/hague/sec1.htm#:~:text=It%20stands%20out%20boldly%2C%20is,elevation%20of%20about%208%2C000%20feet.

https://www.britannica.com/place/Yellowstone-National-Park/Physical-features

https://soilseries.sc.egov.usda.gov/OSD_Docs/Y/YELLOWSTONE.html#:~:text=The%20Yellowstone%20series%20consists%20of,are%203%20to%2090%20percent.

https://www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/wyoming/yellowstoneNP_WY1996/yellnpWY1996.pdf

https://www.usgs.gov/faqs/when-was-asttimeyellowstoneerupted?qtnews_science_products=0#qt-news_science_products

https://www.usgs.gov/faqs/what-would-happen-if-a-supervolcano-eruption-occurred-again-yellowstone?qt-news_science_products=0#qt-news_science_products

https://northtosouth.us/northern-lights-yellowstone-wyoming-usa/

https://en.wikipedia.org/wiki/Aurora

https://www.nps.gov/yell/learn/nature/forests.htm

https://www.for.gov.bc.ca/hfd/library/documents/treebook/lodgepolepine.htm

https://en.wikipedia.org/wiki/Pinus_albicaulis

https://www.fws.gov/mountain-prairie/es/whitebarkPine.php#:~:text=July%2018%2C%202011%3A%20We%20have,actions%20of%20a%20higher%20priority.

https://www.for.gov.bc.ca/hfd/library/documents/treebook/rockymountainjuniper.htm

https://www.nps.gov/yell/learn/nature/mammals.htm

https://www.nationalgeographic.com/animals/mammals/a/american-black-bear/#:~:text=Black%20bears%20are%20North%20America's,found%20in%20mountains%20and%20swamps.

https://www.desertmuseum.org/kids/oz/long-fact-sheets/Bob-

cat.php#:~:text=Predators%20of%20the%20bobcat%20include,owls%2C%20wolves%2C%20and%20humans.&text=Bobcats%20will%20usually%20change%20their%20shelter%20on%20a%20daily%20basis.

https://www.nationalgeographic.com/animals/mammals/b/bobcat/

https://www.gov.nl.ca/ffa/wildlife/snp/programs/education/animal-facts/mammals/lynx/#:~:text=Predators%2FThreats,little%20chance%20in%20the%20open.

https://defenders.org/wildlife/canada-lynx#:~:text=Generally%20solitary%20animals%2C%20lynx%20usually,close%2C%20and%20then%20giving%20chase.

https://www.nwf.org/Educational-Resources/Wildlife-Guide/Mammals/Canada-

Lynx#:~:text=Female%20lynx%20enter%20estrus%E2%80%94the,tangles%20of%20roots%20and%20branches.

https://www.nwf.org/Educational-Resources/Wildlife-Guide/Mammals/Gray-

Wolf#:~:text=Wolves%20can%20thrive%20in%20a,elk%2C%20bison%2C%20and%20moose.

https://www.californiawolfcenter.org/wolf-facts#:~:text=Wolf%20pack%20size%20can%20range,adult%20wolves%20in%20the%20pack.

https://www.nwf.org/Educational-Resources/Wildlife-Guide/Mammals/Grizzly-Bear#:~:text=Grizzly%20bears%20can%20be%20found,berries%2C%20grasses%2C%20and%20forbs.

https://animalfactguide.com/animal-facts/grizzly-bear/#:~:text=While%20mother%20grizzlies%20are%20fiercely,have%20a%20multitude%20of%20strengths.

https://www.esf.edu/aec/adks/mammals/longtailed_weasel.htm#:~:text=Predators%3A%20Avian%20predators%20include%20the,%2C%20aggressiveness%2C%20and%20scent%20glands.

https://www.treehugger.com/river-otters-hardest-working-clowns-in-the-water-4869005#:~:text=Fast%2C%20agile%20swimmers%20with%20powerful,river%20otter%20when%20on%20land.

https://www.esf.edu/aec/adks/mammals/ermine.htm#:~:text=Predators%3A%20Few%20predators%20consistently%20prey,during%20most%20of%20their%20lives.

http://wolverinefoundation.org/faqs#:~:text=The%20mountain%20lion%2C%20wolf%2C%20and,are%20predators%20of%20the%20wolverine.

http://wolverinefoundation.org/wolverine-identification#:~:text=Wolverine%20Identification&text=Stocky%2C%20muscular%20animal%20with%20short,is%20thick%2C%20dark%20and%20glossy.&text=The%20wolverine%20has%20a%20discernible,forehead%20and%20around%20the%20eyes

https://www.fws.gov/mountain-prairie/es/wolverine.php#:~:text=Location%3A%20In%20North%20America%2C%20wolverines,into%20the%20contiguous%20United%20States.

https://nhpbs.org/natureworks/americanbison.htm#:~:text=The%20American%20bison%20is%20the%20largest%20land%20animal%20in%20North%20America.&text=The%20bison%20has%20long%20shaggy,a%20hump%20on%20its%20shoulders.

https://animalfactguide.com/animal-facts/american-bison/#:~:text=Although%20bison%20have%20few%20natural,for%20their%20meat%20and%20hides.

https://www.nwf.org/Home/Educational-Resources/Wildlife-Guide/Mammals/Bighorn-Sheep#:~:text=Bighorn%20sheep%20live%20in%20the,%2C%20bears%2C%20and%20Canada%20lynx.

https://www.britannica.com/animal/elk-mammal

https://www.nps.gov/grsm/learn/nature/elk-facts.htm#:~:text=Coyotes%2C%20bobcats%2C%20and%20black%20bears,successful%20predators%20of%20elk%20elsewhere.

https://www.nwf.org/Educational-Resources/Wildlife-Guide/Mammals/Moose#:~:text=Moose%20are%20herbivores.,aspen%2C%20and%20balsam%20fir%20trees.

https://www.nps.gov/kefj/learn/nature/mountain-goat.htm#:~:text=The%20mountain%20goat%20is%20a,shrubs%20in%20high%20alpine%20meadows.

https://forum.americanexpedition.us/mule-deer-information-facts-photos-and-artwork#:~:text=Mating%20season%20lasts%20from%20October,)%2C%20in%20May%20or%20June.

https://www.nativeanimalrescue.org/understanding-deer/#:~:text=A%20deer%20may%20have%20between,eyes%20open%20and%20fully%20furred.

https://nhpbs.org/wild/population.asp#:~:text=In%20the%20natural%20world%2C%20limiting,and%20disease%20also%20impact%20populations.

https://campingfunzone.com/2019/09/24/why-were-all-the-yellowstone-wolves-exterminated/#:~:text=Moreover%2C%20government%20predator%20control%20programs,the%20nearby%20forests%20as%20well.

https://earthjustice.org/blog/2015-july/how-wolves-saved-the-foxes-mice-and-rivers-of-yellowstone-national-park#:~:text=Two%20decades%20ago%2C%20Yellowstone%20National,from%20America's%20lower%2048%20states.

https://sites.google.com/a/dysartstudents.org/yellowstone-national-park-project/wildlife-interactions