It's hard to believe that some ecosystems are thriving in such harsh environments. Studying and understanding these ecosystems can help us protect or repair them, and it can also help us appreciate how incredibly resilient and creative living things can be! Join Hank Green for an awesome new episode of SciShow all about our ecosystems!

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Sources:

https://www.biologyonline.com/diction...
https://www.nationalgeographic.org/en...
https://www.khanacademy.org/science/b...
https://bioone.org/journals/the-bryol...[420:ECORSS]2.0.CO;2.short
https://research.libraries.wsu.edu:84...
https://www.savetheredwoods.org/blog/...
https://bsapubs.onlinelibrary.wiley.c...
https://www.fs.fed.us/psw/publication...
https://www-jstor-org.proxy.library.c...
https://www.nature.com/articles/srep2...
https://www.sciencealert.com/the-fina...
https://www.sciencedirect.com/science...
https://oceanservice.noaa.gov/facts/e...
https://www.sciencedirect.com/science...
https://www.frontiersin.org/articles/...
https://www.researchgate.net/profile/...
https://www.nature.com/articles/s4146...
https://www.nature.com/articles/srep2...
https://doi.org/10.1038/nature21377
https://doi.org/10.1038/nrmicro1991
https://www.annualreviews.org/doi/abs...
https://www.nature.com/articles/ngeo2633
https://www.researchgate.net/publicat...
https://www.sciencedirect.com/science...
https://www.sciencedaily.com/releases...
https://www.nature.com/news/2005/0508...
https://www.cell.com/current-biology/...
https://www.sciencedirect.com/science...
https://www.nature.com/articles/nrmic...
https://www.researchgate.net/profile/...
https://academic.oup.com/jhered/artic...

Images:

https://commons.wikimedia.org/wiki/Fi...
https://en.wikipedia.org/wiki/File:Wh...
https://nautiluslive.org/cruise/na117
https://commons.wikimedia.org/wiki/Fi...
https://en.wikipedia.org/wiki/File:En...