Scientific sources used:
Milkweed Tussock moth:
Hristov, Nickolay & Conner, William. (2005). Sound strategy: Acoustic aposematism in the bat-tiger moth arms race. Die Naturwissenschaften. 92. 164-9. 10.1007/s00114-005-0611-7. 
Monarch butterfly:
Parson’s chameleon:
Ligon Russell A. and McGraw Kevin J. 2013 Chameleons communicate with complex colour changes during contests: different body regions convey different informationBiol. Lett.92013089220130892
Dahlhausen, Katherine E et al. “Characterization of shifts of koala (Phascolarctos cinereus) intestinal microbial communities associated with antibiotic treatment.” PeerJ vol. 6 e4452. 12 Mar. 2018, doi:10.7717/peerj.4452
Gray bat:
Wright, André-Denis G et al. “Rumen-like methanogens identified from the crop of the folivorous South American bird, the hoatzin (Opisthocomus hoazin).” The ISME journal vol. 3,10 (2009): 1120-6. doi:10.1038/ismej.2009.41
Simmons, Robert & Scheepers, Lue. (1996). Winning by a Neck: Sexual Selection in the Evolution of Giraffe. American Naturalist. 148. 771-786. 10.1086/285955.
Clark’s anemone fish:
Burke da Silva, Karen & Nedosyko, Anita. (2016). Sea Anemones and Anemonefish: A Match Made in Heaven. 10.1007/978-3-319-31305-4_27.
Asiatic black bears:
Hwang, M.-H & Garshelis, D.L. & Wang, Y.. (2001). Diets of Asiatic black bears in Taiwan, with methodological and geographical comparisons. Ursus. 13. 111-125. 
African elephants:
Spanbauer, Bradley & Adler, Gregory. (2015). Seed protection through dispersal by African savannah elephants (Loxodonta africana africana) in northern Tanzania. African Journal of Ecology. 53. 10.1111/aje.12239. 
Anthony’s Poison Arrow frog:
Darst CR, Menéndez-Guerrero PA, Coloma LA, Cannatella DC. Evolution of dietary specialization and chemical defense in poison frogs (Dendrobatidae): a comparative analysis. Am Nat. 2005 Jan;165(1):56-69. doi: 10.1086/426599. Epub 2004 Nov 12. PMID: 15729640.
Northern Fur seal:
Maned Three-Toed sloth:
Pauli Jonathan N.Mendoza Jorge E.Steffan Shawn A.Carey Cayelan C.Weimer Paul J. and Peery M. Zachariah 2014 A syndrome of mutualism reinforces the lifestyle of a sloth Proc. R. Soc. B.2812013300620133006
Map Data:
Milkweed Tussock moth global range:
The North American Moth Photographers Group at Mississippi State University 
Monarch global range:
Nail, Kelly & Drizd, Lara & Voorhies, Kristen. (2019). Butterflies Across the Globe: A Synthesis of the Current Status and Characteristics of Monarch (Danaus plexippus) Populations Worldwide. Frontiers in Ecology and Evolution. 7. 10.3389/fevo.2019.00362. 
Clark’s anemonefish Global Range:
Froese, R. and D. Pauly. Editors. 2020.FishBase.
World Wide Web electronic publication., ( 12/2020 )
All other map data:
Range, threat level, and population data from accessed spring, 2021.