SciShow

Behold—Poisonous Snakes! (Yes, You Read That Right)

While it’s true that most snakes aren’t considered poisonous, there definitely are poisonous snakes, with poison for their predators and venom for their prey.

Hosted by: Hank Green

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Sources:

https://www.science.org.au/curious/everything-else/poison-vs-venom
https://www.nationalgeographic.com/science/phenomena/2013/01/09/on-the-origin-of-venom/
https://www.unco.edu/nhs/biology/about-us/mackessy-stephen/documents/2014-ToxinReviews-Colubrid-venoms.pdf
http://snakesarelong.blogspot.com/2013/09/basics-of-snake-fangs.html
http://reptile-database.reptarium.cz/species?genus=Rhabdophis&species=tigrinus
https://www.researchgate.net/publication/225633210_Chemical_investigations_of_defensive_steroid_sequestration_by_the_Asian_snake_Rhabdophis_tigrinus
http://www.pnas.org/content/104/7/2265.short
https://www.researchgate.net/publication/226345711_Nuchal_glands_A_novel_defensive_system_in_snakes
http://www.bioone.org/doi/pdf/10.5358/hsj.35.53
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4407547/
https://link.springer.com/article/10.1023/B:JOEC.0000045585.77875.09
https://www.jstor.org/stable/pdf/1442023.pdf?seq=1#page_scan_tab_contents
http://www.bioone.org/doi/abs/10.3105/1345-5834%282008%2927%5B23%3ACETTKN%5D2.0.CO%3B2?journalCode=jche
https://www.sciencedirect.com/science/article/pii/S092966461200109X
https://www.jstage.jst.go.jp/article/mez/40/3/40_KJ00002641969/_article
https://www.researchgate.net/publication/283084352_Natural_history_note_on_a_new_defensive_behavior_observation_from_Rhabdophis_subminiatus_helleri
https://link.springer.com/article/10.1023/B:JOEC.0000045585.77875.09
https://www.mcglothlin.biol.vt.edu/cb2016.pdf

Images:

https://commons.wikimedia.org/wiki/File:Rhabdophis_tigrinus_IMG_6559.retouch.JPG
http://www.thinkstockphotos.com/image/stock-photo-rhabdophis-tigrinus/683240674/popup?sq=%20Rhabdophis/f=CPIHVX/s=DynamicRank

http://www.thinkstockphotos.com/image/stock-photo-western-diamondback-rattlesnake-striking-with/146062145/popup?sq=snake%20fangs/f=CPIHVX/s=DynamicRank
http://www.thinkstockphotos.com/image/stock-photo-female-boomslang-snake-in-botswana/696227832/popup?sq=boomslang%20fangs/f=CPIHVX/s=DynamicRank

http://www.thinkstockphotos.com/image/stock-photo-tiger-keelback-rhabdophis-tigrinus/469459904/popup?sq=keelback/f=CPIHVX/s=DynamicRank

https://commons.wikimedia.org/wiki/File:Bufadienolide_skeletal.svg
http://www.thinkstockphotos.com/image/stock-photo-rhabdophis-himalayanus-rhabdophis-himalayanus/947821124/popup?sq=%20Rhabdophis/f=CPIHVX/s=DynamicRank
https://commons.wikimedia.org/wiki/File:Garter_Snake_(6869758932).jpg
Thumbnail: http://www.thinkstockphotos.com/image/stock-photo-tiger-keelback-rhabdophis-tigrinus/469459888/popup?sq=keelback/f=CPIHVX/s=DynamicRank

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