Moon, Brad R. (2001). "Muscle Physiology and the Evolution of the Rattling System in Rattlesnakes". Journal of Herpetology. 35 (3): 497–500. doi: 10.2307/1565969. ISSN 0022-1511. JSTOR 1565969. Hammerson, Geoffrey A. (2004). Connecticut wildlife: biodiversity, natural history, and conservation. UPNE. p.328. ISBN 978-1-58465-369-1. Read, Kay A.; González, Jason J., eds. (2002). "Feathered Serpents". Mesoamerican Mythology: A Guide to the Gods, Heroes, Rituals, and Beliefs of Mexico and Central America. Oxford University Press. p. 180. ISBN 978-0-19-514909-8.

Rattlesnakes generally take several years to mature, and females usually reproduce only once every three years. [73] Brumation [ edit ] Rattlesnakes travel with their rattles held up to protect them from damage, but in spite of this precaution, their day-to-day activities in the wild still cause them to regularly break off end segments. Because of this, the number of rattles on its tail is not related to the age of a rattlesnake. [1] [49] [50] Creases in the epidermal tissue connect the scales of rattlesnakes. When ingesting large prey, these creases can unfold, allowing the skin to expand to envelop a much greater volume. The skin appears to tightly stretch to accommodate the meal, but in reality, the skin is simply smoothing out from its creased state and is not under very high tension. [65] Reproduction [ edit ] Two male northern Pacific rattlesnakes ( C. oreganus oreganus) engage in a "combat dance" Everted hemipenis of a male C. adamanteus Place, Arron J.; Abramson, Charles I. (2004). "A Quantitative Analysis of the Ancestral Area of Rattlesnakes". Journal of Herpetology. 38 (1): 151–156. doi: 10.1670/103-03N. S2CID 86252575. a b Schoenherr, Allan A. (1995). A Natural History of California. University of California Press. p.510. ISBN 978-0-520-06922-0.Adams, Clark E. & Thomas, John K. (2008). Texas Rattlesnake Roundups. Texas A&M University Press. p.23. ISBN 978-1-60344-035-6. Browman, David L. & Williams, Stephen (2002). New perspectives on the origins of Americanist archaeology. University of Alabama Press. p.99. ISBN 978-0-8173-1128-5. Delivery partners are very busy at this time of the year, therefore we are not able to guarantee a next day delivery, although we will use an express delivery service if you have opted for such. They are a pair of strong magnetic eggs that when tossed together make a loud rattling sound. You can throw them in the air, or push them together and the strong magnetic pull will make the eggs clank together and sing. Each oval magnet is 60 x 18 mm. They can be used for a long period of time. Kini, R. Manjunatha; etal., eds. (2011). Toxins and Hemostasis. Springer 2011. p.99. ISBN 978-90-481-9294-6.

Rattlesnakes are venomous snakes that form the genera Crotalus and Sistrurus [1] of the subfamily Crotalinae (the pit vipers). All rattlesnakes are vipers. Rattlesnakes are predators that live in a wide array of habitats, hunting small animals such as birds and rodents. The skin of rattlesnakes is intricately patterned in a manner that camouflages them from their predators. [62] [63] Rattlesnakes do not generally have bright or showy colors (reds, yellows, blues, etc.), instead relying on subtle earth tones that resemble the surrounding environment. [64]Rubio 1998, p.59 – Knowledge that rattlesnakes are so afraid of kingsnakes' odor led to the development of effective synthetic rattlesnake repellents. Myers, Bob (1991). "Rattles". American International Rattlesnake Museum. Albuquerque, New Mexico. Archived from the original on 2022-06-30. Glenn, J. L.; R. C. Straight. 1982. "The rattlesnakes and their venom yield and lethal toxicity". In: Tu, A. (ed) Rattlesnake Venoms, Their Actions and Treatment. New York: Marcel Dekker, Inc. Jensen, Bjarke; Abe, Augusto S.; Andrade, Denis V.; Nyengaard, Jens R.; Wang, Tobias (2010). "The heart of the South American rattlesnake, Crotalus durissus". Journal of Morphology. 271 (9): 1066–1077. doi: 10.1002/jmor.10854. ISSN 1097-4687. PMID 20730920. S2CID 206091017. An important function of the skin is the sensation of changes in air temperature, which can guide the snakes towards warm basking/shelter locations. [62] All snakes are ectotherms. To maintain a stable body temperature, they exchange heat with their external environments. Snakes often move into open, sunny areas to absorb heat from the sun and warmed earth, a behavior known as basking. Nerves in the skin regulate the flow of blood into the veins near the surface. [61]