Animals Network Team. (2018). Beaver. Retrieved from https://animals.net/beaver/
Beaver solutions. (2018). Beaver Behavior and Biology. Retrieved from https://www.beaversolutions.com/beaver-facts-education/beaver-behavior-and-biology/
Doronina, Liliya. (2017). The Beaver’s Phylogenetic Lineage Illuminated by Retroposon Reads". Scientific reports (2045-2322), 7 (1), 1. Retrieved from https://doi-org.lopes.idm.oclc.org/10.1038/srep43562
Horn S, Durka W, Wolf R, Ermala A, Stubbe A, Stubbe M, et al. (2011). Mitochondrial Genomes Reveal Slow Rates of Molecular Evolution and the Timing of Speciation in Beavers (Castor), One of the Largest Rodent Species. PLoS ONE 6(1): e14622. Retrieved from https://doi.org/10.1371/journal.pone.0014622
Müller-Schwarze, D. (2011). The beaver: Its life and impact (2nd ed.). Cornell University Press. ISBN 978-0-8014-5010-5
Müller-Schwarze, D., Heckman, S. (1980). The social role of scent marking in beaver (Castor Canadensis). J Chem Ecol 6, 81–95. Retrieved from https://doi.org/10.1007/BF00987529
Navakowski, N. S. (Jan, 1969). The influence of Vocalization on the Behavior of Beaver, Castor canadensis Kuhl. The American Midland Naturalist. 81(1). 198-204. Retrieved from https://www.jstor.org/stable/2423661
Nordell, S. & Valone, T. (2016). Animal Behavior: Concepts, Methods, and Applications (2nd ed). Oxford University Press, ISBN: 9780190276744
Patenaude, Françoise. (2010). The Ontogeny of Behavior of Free‐living Beavers (Castor canadensis). Zeitschrift für Tierpsychologie. 66. 33 - 44. 10.1111/j.1439-0310.1984.tb01353.x.
Pennsylvania Game Commission. (2022). Beaver. Retrieved from https://www.pgc.pa.gov/Education/WildlifeNotesIndex/Pages/Beaver.aspx#:~:text=A%20sharp%20slap%20of%20the%20tail%20on%20water,signal.%20A%20beaver%E2%80%99s%20front%20feet%20are%20remarkably%20dexterous.
BGRDNCK. (2009). Distribution of the Beaver [Digital]. Retrieved from https://www.hww.ca/assets/images/mammals/beaver/beaver_map.jpg
Baby Beaver (2018). Retrieved from https://i.imgur.com/tg98e4h.jpg
Salthaven West. (2016). Retrieved from https://cottagelife.com/wp-content/uploads/2016/05/13254111_984048958382950_4326476719394493140_n.jpg
Momatiuk, Y. & Eastcott, J. (2009). Retrieved from https://th.bing.com/th/id/OIP.O8UJ49-BPaGTYTRlA3abeAHaE8?pid=ImgDet&rs=1
Huldre. (2022). The view from my canoe. Retrieved from https://4.bp.blogspot.com/-HG-KVEnVDPg/WROJ8HqeLJI/AAAAAAAAE1I/lVvYNrvFcjI94j5JZdtSmuEFABOcq3d1gCEw/s1600/IMG_2171x.jpg
Leeson, T. & Leeson P. (2012). American Beaver (Castor canadensis) slapping its tail as a warning to other beaver that an intruder is about. Western U.S., spring. Retrieved from https://i.pinimg.com/736x/78/a1/ae/78a1ae0b5d6497a22fde63a459523e1c--beavers-skunks.jpg
Pesaturo, J. (2020). Retrieved from https://winterberrywildlife.ouroneacrefarm.com/wp-content/uploads/2020/04/Beaver-G38-4.jpg
Vanni, O. (2019). Retrieved from https://th.bing.com/th/id/OIP.mgJCFYVGhAzdxP58iUoIZQHaFV?pid=ImgDet&rs=1
(n.d.) Retrieved from https://cottagelife.com/wp-content/uploads/2016/07/Cute-baby-beavers-e1468506243629.jpg
Lennart Hessel. (2014, July 9). Juvenile Beavers play fighting [Video]. YouTube. https://www.youtube.com/watch?v=JLtDIyDGu3o
Animal Sounds. (2020, June 7). What Sound Does A Beaver Make? - Animal Sounds (Beaver Sounds) [Video]. YouTube. https://www.youtube.com/watch?v=iOLkC45CoYs
Nina Vossler. (2017, June 6). Beaver’s Tail-Slap Warning [Video]. YouTube. https://www.youtube.com/watch?v=t0V1jepIGkk
Cute Animals. (2020b, October 17). GIVING BEAVERS CARROTS [Video]. YouTube. https://www.youtube.com/watch?v=x2J7EPWfcdI