Sources

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• Rodríguez‐Robles, Javier A. “Gape Size and Evolution of Diet in Snakes: Feeding Ecology of Erycine Boas.” Journal of zoology. 248.1 (1999): 49–58. Web. https://doi-org.jpllnet.sfsu.edu/10.1111/j.1469-7998.1999.tb01021.x (diet and feeding)

• Noble, G. K., and A. Schmidt. “The Structure and Function of the Facial and Labial Pits of Snakes.” Proceedings of the American Philosophical Society, vol. 77, no. 3, American Philosophical Society, 1937, pp. 263–88, http://www.jstor.org/stable/984731. (heat pits and boides)

• Hall, Brian. (2003). Descent with modification: The unity underlying homology and homoplasy as seen through an analysis of development and evolution. Biological reviews of the Cambridge Philosophical Society. 78. 409-33. 10.1017/S1464793102006097. (python spur image)

• Hoyer, Richard F., and Glenn R. Stewart. “Biology of the Rubber Boa (Charina Bottae), with Emphasis on C. b. Umbratica. Part I: Capture, Size, Sexual Dimorphism, and Reproduction.” Journal of Herpetology, vol. 34, no. 3, Society for the Study of Amphibians and Reptiles, 2000, pp. 348–54, https://doi.org/10.2307/1565355. (SIZE, SEXUAL DIAMORPHISM, REPRODUCTION)

• Hoyer, Richard F., and Glenn R. Stewart. “Biology of the Rubber Boa (Charina Bottae), with Emphasis on C. b. Umbratica. Part II: Diet, Antagonists, and Predators.” Journal of Herpetology, vol. 34, no. 3, Society for the Study of Amphibians and Reptiles, 2000, pp. 354–60, https://doi.org/10.2307/1565356. (DIET, ANTAGONISTS, PREDATORS)

• Erwin, D. B. “Some Findings on Newborn Rubber Boas, Charina b. Bottae.” Copeia, vol. 1964, no. 1, [American Society of Ichthyologists and Herpetologists (ASIH), Allen Press], 1964, pp. 222–23, https://doi.org/10.2307/1440863. (coloring of babies)

• Dorcas, Michael E., and Charles R. Peterson. “Head-Body Temperature Differences in Free-Ranging Rubber Boas.” Journal of Herpetology, vol. 31, no. 1, Society for the Study of Amphibians and Reptiles, 1997, pp. 87–93, https://doi.org/10.2307/1565333. (Head-Body Temperature Differences in Free-Ranging Rubber Boas)

• Dorcas, Michael E., et al. “The Thermal Biology of Digestion in Rubber Boas (Charina Bottae): Physiology, Behavior, and Environmental Constraints.” Physiological Zoology, vol. 70, no. 3, [University of Chicago Press, Division of Comparative Physiology and Biochemistry, Society for Integrative and Comparative Biology], 1997, pp. 292–300, http://www.jstor.org/stable/30164316. (The Thermal Biology of Digestion in Rubber Boas (Charina bottae): Physiology, Behavior, and Environmental Constraints) maybe

• Zhang, Ying et al. “Physiological and Behavioral Control of Heating and Cooling Rates in Rubber Boas, Charina Bottae.” Journal of thermal biology 33.1 (2008): 7–11. Web. https://doi.org/10.1016/j.jtherbio.2007.08.005 (Physiological and behavioral control of heating and cooling rates in rubber boas, Charina bottae)

• Cunningham, John D. “Observations on the Taxonomy and Natural History of the Rubber Boa, Charina Bottae.” The Southwestern Naturalist, vol. 11, no. 2, Southwestern Association of Naturalists, 1966, pp. 298–99, https://doi.org/10.2307/3669652. (cool temperatures)

• Pols, J.J. van der, 1988. Care, breeding and other things worth knowing about the Rubberboa, Charina bottae bottae (Blainville). Litteratura Serpentium, Vol. 8(6): 244-254. https://www.snakesociety.nl/jaargangen/1988e/Litteratura%20Serpentium%208-6%20244-254%20vdPols,%20Care%20and%20breeding%20Charina%20bottae%20bottae.pdf  (Overall info & specifics about mating)

• Hoyer, Richard F. “Description of a Rubber Boa (Charina Bottae) Population from Western Oregon.” Herpetologica, vol. 30, no. 3, [Herpetologists’ League, Allen Press], 1974, pp. 275–83, http://www.jstor.org/stable/3891834. (overall info with good diagrams)

• Stebbins, Robert C., and Samuel M. McGinnis. “Snakes (Suborder Serpentes [Ophidia]).” Field Guide to Amphibians and Reptiles of California: Revised Edition, University of California Press, 2012, pp. 339–422, http://www.jstor.org/stable/10.1525/j.ctt1pn65t.12. (defense)

• Linder, Allan D. “Ophiophagy by the Rubber Boa.” Herpetologica, vol. 19, no. 2, [Herpetologists’ League, Allen Press], 1963, pp. 143–143, http://www.jstor.org/stable/3890554. (eating other snakes)

• "Can a Snake Cure Fear."YouTube, uploaded by Brave Wilderness, 8 Dec. 2015, https://youtu.be/l0pHGj5L3iM

• “Rubber Boa - Facts, Diet, Habitat & Pictures on Animalia.bio.” Animalia.bio, https://animalia.bio/rubber-boa. (general info)

• “Northern Rubber Boa.” Burke Museum, https://www.burkemuseum.org/collections-and-research/biology/herpetology/amphibians-reptiles-washington/northern-rubber-boa. (mentions heat tolerance)

• Mader, Douglas. “Snake Respiratory System Anatomy.” Reptiles Magazine, 1 Dec. 2011, https://reptilesmagazine.com/snake-respiratory-system-anatomy/. (most snakes respiratory system)

• Mader, Douglas. “Snake Gastrointestinal Tract Anatomy.” Reptiles Magazine, 1 Dec. 2011, https://reptilesmagazine.com/snake-gastrointestinal-tract-anatomy/.(digestion)

• Joe. “Do Snakes Have Lungs?” Fauna Facts, 31 Aug. 2021, https://faunafacts.com/snakes/do-snakes-have-lungs/. (snake lungs/gas exchange)

• Jeremy. “Do Snakes Have Lungs? [Can Snakes Breathe through Their Skin?].” Pet Educate, 24 Feb. 2020, https://peteducate.com/do-snakes-have-lungs/. (goes into boa lungs a little more)

• AMNH. “Pit Vipers Can Detect Prey via Heat.” American Museum of Natural History, 15 Jan. 2018, https://www.amnh.org/explore/news-blogs/news-posts/pit-vipers-can-detect-prey-via-heat. (says boas have heat pits)

• “Snake Profile: Rubber Boa (with Pictures).” HappySerpent, 31 May 2020, https://happyserpent.com/snake-profile/rubber-boa/#Hibernation. (hibernation and reproduction)

All pictures not linked to a scholarly articles were taken by me personally.