This Valentine’s Day, send a little love to your bacterial buddies! Our microbes keep us healthy, but some bacteria give their animal companions superpowers, like immunity to poison, or even invisibility!

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Sources:

Aphids
https://www.annualreviews.org/doi/abs...
http://web.uconn.edu/mcbstaff/graf/Ap...
https://www.agric.wa.gov.au/barley/ap...
https://www.ncbi.nlm.nih.gov/pmc/arti...
https://books.google.ca/books?id=FzBs...
https://onlinelibrary.wiley.com/doi/p...
https://www.sciencedirect.com/science...
https://www.ncbi.nlm.nih.gov/pmc/arti...
https://www.pnas.org/content/109/20/E...
https://www.tandfonline.com/doi/pdf/1...
https://www.jstage.jst.go.jp/article/...

Desert woodrats
https://academic.oup.com/icb/article/...
https://onlinelibrary.wiley.com/doi/f...
https://esajournals.onlinelibrary.wil...
https://www.frontiersin.org/articles/...
https://www.atsdr.cdc.gov/ToxProfiles...
https://www.jstor.org/stable/1378444?...
https://esajournals.onlinelibrary.wil...
https://www.ncbi.nlm.nih.gov/pubmed/1...

Clams
https://www.ncbi.nlm.nih.gov/pmc/arti...
https://www.tandfonline.com/doi/full/...
https://link.springer.com/article/10....
https://www.nature.com/articles/nrmic...
https://link.springer.com/article/10....
http://www.whoi.edu/feature/history-h...
https://bmcgenomics.biomedcentral.com...

Blue-ringed octopus
https://oceanconservancy.org/blog/201...
https://link.springer.com/article/10....
http://www.pbs.org/wnet/nature/animal...
http://www.sfjo-lamer.org/la_mer/22-3...
https://www.sciencedirect.com/science...
https://www.ncbi.nlm.nih.gov/pmc/arti...

Bobtail squid
https://www.cell.com/current-biology/...
https://link.springer.com/article/10....
https://www.ncbi.nlm.nih.gov/pmc/arti...
https://www.pnas.org/content/102/8/30...

Images:

https://commons.wikimedia.org/wiki/Fi...
https://en.wikipedia.org/wiki/File:20...
https://en.wikipedia.org/wiki/File:Jo...
https://en.wikipedia.org/wiki/File:L-...
https://en.wikipedia.org/wiki/File:Sc...
https://en.wikipedia.org/wiki/File:De...
https://commons.wikimedia.org/wiki/Fi...
https://commons.wikimedia.org/wiki/Fi...
https://commons.wikimedia.org/wiki/Fi...
https://en.wikipedia.org/wiki/File:De...
https://www.flickr.com/photos/interne...
https://en.wikipedia.org/wiki/File:Ch...
https://en.wikipedia.org/wiki/File:Mu...
https://commons.wikimedia.org/wiki/Fi...
https://en.wikipedia.org/wiki/File:Ha...
https://commons.wikimedia.org/wiki/Fi...