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References:

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BEC Crew. "Diver Coaxes Shark into a Tonic State". Science Alert. Feb 11, 2015.

http://www.sciencealert.com/watch-diver-coaxes-shark-into-a-tonic-state-and-it-s-beautiful

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Brooks, Edward J. et al. “The Stress Physiology of Extended Duration Tonic Immobility in the Juvenile Lemon Shark, Negaprion Brevirostris (Poey 1868).” Journal of Experimental Marine Biology and Ecology 409.1–2 (2011): 351–360. ScienceDirect. Web.

http://www.sciencedirect.com/science/article/pii/S0022098111004278
 

Campo, J. L., M. T. Prieto, and S. G. Dávila. “Effects of Housing System and Cold Stress on Heterophil-to-Lymphocyte Ratio, Fluctuating Asymmetry, and Tonic Immobility Duration of Chickens.” Poultry Science 87.4 (2008): 621–6. Print.

http://search.proquest.com/docview/223145442/19A52C701D964F17PQ/16?accountid=13475

 

Davie, Peter S., Craig E. Franklin, and Gordon C. Grigg. “Blood Pressure and Heart Rate during Tonic Immobility in the Black Tipped Reef shark,Carcharhinus Melanoptera.” Fish Physiology and Biochemistry 12.2 95–100. link.springer.com. Web.

https://www.ncbi.nlm.nih.gov/pubmed/24202688

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El-lethey, H, T. W Jungi, and B Huber-Eicher. “Effects of Feeding Corticosterone and Housing Conditions on Feather Pecking in Laying Hens (Gallus Gallus Domesticus).” Physiology & Behavior 73.1–2 (2001): 243–251. ScienceDirect. Web.

http://www.sciencedirect.com/science/article/pii/S0031938401004759

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Hansen, Line Spinner et al. “Thanatosis as an Adaptive Male Mating Strategy in the Nuptial Gift–giving Spider Pisaura Mirabilis.” Behavioral Ecology 19.3 (2008): 546–551. beheco.oxfordjournals.org. Web.

http://beheco.oxfordjournals.org/content/19/3/546.short

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Hoagland, Hudson. “The Mechanism of Tonic Immobility (Animal Hypnosis).” Journal of General Psychology 1 (1928): 426–447. Print.

http://search.proquest.com/docview/1290524000/19A52C701D964F17PQ/13?accountid=13475
 

Marx, Brian P. et al. “Tonic Immobility as an Evolved Predator Defense: Implications for Sexual Assault Survivors.” Clinical Psychology: Science and Practice 15.1 (2008): 74–90. Wiley Online Library. Web.

http://onlinelibrary.wiley.com/doi/10.1111/j.1468-2850.2008.00112.x/full (Humans)

 

Taylor, S. (2006). Clinician’s Guide to PTSD: A Cognitive-Behavioral Approach. Guilford Press.

https://books.google.com/books?id=LGTMTef-csEC&pg=PA63&lpg=PA63&dq=adaptive+value+of+tonic+immobility&source=bl&ots=Sy2_77Fge3&sig=5wgZ6zRII6AowK729g5wscriHbE&hl=en&sa=X&ved=0ahUKEwi-xtTfwKvQAhXHiFQKHZdJA4QQ6AEIJDAC#v=onepage&q=adaptive%20value%20of%20tonic%20immobility&f=false

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Thompson, Roger K. R., and Mark Liebreich. “Adult Chicken Alarm Calls Enhance Tonic Immobility in Chicks.” Behavioural Processes 14.1 (1987): 49–61. ScienceDirect. Web.

http://www.sciencedirect.com/science/article/pii/0376635787900660

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Withers, Patrick. “What is the evolutionary reason for tonic immobility in sharks”. (2015). Quora. Web. https://www.quora.com/What-is-the-evolutionary-reason-for-tonic-immobility-in-sharks

 

Picture and Video Links:

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https://thenakeddarwin.files.wordpress.com/2014/09/tonic-immobility.jpg

http://www.livescience.com/48387-permian-predator-dimetrodon-ate-sharks.html

http://www.seaworld.org.za/news/entry/ragged-tooth-shark-birth-a-first-for-ushaka-sea-world

http://www.sharkattacknews.org/2013/11/hd-video-orca-kills-great-white-30.html

http://www.nature.com/nature/journal/v533/n7604/full/533440a.html

https://books.google.com/books?id=LGTMTef-csEC&pg=PA63&lpg=PA63&dq=adaptive+value+of+tonic+immobility&source=bl&ots=Sy2_77Fge3&sig=5wgZ6zRII6AowK729g5wscriHbE&hl=en&sa=X&ved=0ahUKEwi-xtTfwKvQAhXHiFQKHZdJA4QQ6AEIJDAC#v=onepage&q=adaptive%20value%20of%20tonic%20immobility&f=false

https://www.reddit.com/r/Awwducational/comments/2s0lrb/chicken_can_enter_a_state_of_semiparalysis_known/

http://biology.about.com/od/zoology/ss/Why-Some-Animals-Play-Dead.htm

http://www.thebahamasweekly.com/publish/grand-bahama-bahamas/Sharks_Friend_or_Foe_One_Student_s_Educational_Experience_printer.shtml

http://www.the-chicken-chick.com/2012/10/autumn-chicks.html

Figure 1- http://www.reed.edu/biology/courses/BIO342/2012_syllabus/web.html

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