When, in nature, two little guys are benefiting off each other one way or another, we call that symbiosis. But, if you think about it too hard, you start to realize that everything in nature is benefitting off some other thing in nature somehow and come to the conclusion that all of Earth is a giant symbiotic relationship! To that I say: simply try not to think about it too hard!

SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! 

Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!

And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!

A big thank you to Patreon subscribers Garth Riley and Tom Mosner for helping to make the show possible!

Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! 

While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen

[Fact Off]

Figs and fig wasp cheating prevention 

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1635526/

https://www.fs.fed.us/wildflowers/pollinators/pollinator-of-the-month/fig_wasp.shtml

https://news.cornell.edu/stories/2010/01/figs-kill-wasp-larvae-when-wasps-do-not-pollinate-figs

https://royalsocietypublishing.org/doi/full/10.1098/rspb.2009.2157

Magnetotactic bacteria in tissues of animals with magnetoreception  

https://www.sciencedaily.com/releases/2020/09/200914112224.htm

[Ask the Science Couch]

Symbioses with more than 2 organisms

https://www.nature.com/scitable/knowledge/library/species-interactions-and-competition-102131429/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8331144/

https://pubmed.ncbi.nlm.nih.gov/17255511/

https://www.princeton.edu/news/2019/06/27/sea-slugs-use-algaes-bacterial-weapons-factory-three-way-symbiotic-relationship

https://www.purdue.edu/newsroom/releases/2016/Q3/yeast-emerges-as-hidden-third-partner-in-lichen-symbiosis.html

https://www.smithsonianmag.com/science-nature/what-drives-a-sloths-ritualistic-trek-to-poop-180949419/

[Butt One More Thing]

Crab that lives in sea urchin rectum

Picture: https://www.marinelifephotography.com/marine/arthropods/crabs/echinoecus-pentagonus.htm

https://scholarspace.manoa.hawaii.edu/handle/10125/11997

https://www.sciencedirect.com/science/article/abs/pii/S0022098178800070

https://askabiologist.asu.edu/sea-urchin-anatomy

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.