The 4 Creepiest Parasites on Earth (This Will Keep You Up at Night!)

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Published 2019-08-11
WARNING! This episode will freak you out. Did you know that almost half of all life on earth is parasitic? Join us for an eerie video hosted by Hank Green and learn about four of the creepiest parasites on Earth.

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Hosted by: Hank Green

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Sources:
www.otago.ac.nz/parasitegroup/PDF%20papers/Poulin2…
www.researchgate.net/publication/300095919_Effect_…
repositories.lib.utexas.edu/handle/2152/ETD-UT-201…
www.researchgate.net/profile/Denham_Parker/publica…
aquaticcommons.org/8583/1/NG_62_2003_Williams&Bunk…
www.researchgate.net/publication/319913453_First_r…
people.oregonstate.edu/~blaustea/pdfs/JohnsonBlaus…
www.researchgate.net/publication/8211765_Review_of…
zslpublications.onlinelibrary.wiley.com/doi/full/1…
www.sciencedirect.com/science/article/pii/S1385110…
nph.onlinelibrary.wiley.com/doi/pdf/10.1046/j.1469…
www.harvardmagazine.com/2017/03/colossal-blossom
bulbapedia.bulbagarden.net/wiki/Vileplume_(Pok%C3%…)
www.ncbi.nlm.nih.gov/pmc/articles/PMC3460754/


Image Sources:
commons.wikimedia.org/wiki/File:Amphiprion_clarkii…
commons.wikimedia.org/wiki/File:Cymothoa_exigua_pa…

commons.wikimedia.org/wiki/File:Annual_report_of_t…
commons.wikimedia.org/wiki/File:P._regilla_with_pa…
commons.wikimedia.org/wiki/File:Leucochloridium.og…
commons.wikimedia.org/wiki/File:Three-legged_frog_…
commons.wikimedia.org/wiki/File:Greenfrog_life_sta…

commons.wikimedia.org/wiki/File:Sacculina_carcini.…
www.eurekalert.org/multimedia/pub/144794.php?from=…
commons.wikimedia.org/wiki/File:Haeckel_Sacculina.…
commons.wikimedia.org/wiki/File:Wurzelkrebs-drawin…
commons.wikimedia.org/wiki/File:Xantho_poressa_200…

commons.wikimedia.org/wiki/File:Ah,_Rafflesia!_(11…
commons.wikimedia.org/wiki/File:Rafflesia_zollinge…
commons.wikimedia.org/wiki/File:Rafflesia-Bud_on_L…
commons.wikimedia.org/wiki/File:This_Rafflesia_is_…
commons.wikimedia.org/wiki/File:Stamps_of_Indonesi…
commons.wikimedia.org/wiki/File:Rafflesia_arnoldii…

All Comments (21)
  • @SciShow
    Go to brilliant.org/SciShow to try their Beautiful Geometry course. The first 200 subscribers get 20% off an annual Premium subscription.
  • @SBroproductions
    "Horrifying, but wait, it gets worse." - Parasites in a nutshell.
  • I had no idea the corpse flower was a parasite. I never knew entirely what it was, but I thought it was just some weird plant
  • @jimmutenken3989
    I always thought Rafflesia flowers had something interesting about them, but I never knew they’d have such a hardcore strategy for survival.
  • @redozmasoma
    The No. 1 isopods are so polite "Oh, someone is already at the tongue, ok let me just chill on the gills" lol
  • @HeavyMettaloid
    Now the "Oh, barnacles!" swear from Spongebob makes sense!
  • @NatureWitch
    Poor crabs everything and everyone wants to eat them or use them.
  • If scientists manage somehow to fuse a couple of these together in a lab, we would have a zombie apocalypse.
  • @cyirvine6300
    I had a lizard that had eyes that would bulge out and pulse like that. Now I freak out wondering if it was infected. Great video with content!
  • @Vannah272
    "It invades the eye stalks of snails, turning each eye into a pulsating brood sac that looks like a juicy caterpillar ready to be snapped up by the parasite's next host." My eardrums will never be clean again.
  • @donfields1234
    I thought humans getting crabs was bad, but crabs getting barnacles is waaaay worse, AND the poor crab didnt even have unprotected sex or live dangerously....how unfair the world truly is.
  • I always hope these animals (and even insects) don't suffer. I can't imagine how painful these things could be... or other forms of suffering, like not being able to breathe.
  • Those parasites in the snail's 'eyes' are def one of the most horrific creatures. I'm glad these small creatures cannot 'think' the way we do. Nature is so damn macabre sometimes!
  • @xVancha
    Hank: "The parasite even somehow forces the snails to be more active and stay out in the open where they're easier for predators to spot" Snail: THIS IS HELL. SOMETHING KILL ME. ANYTHING. PLEASE.
  • There's also another parasite that attatches to a spider and hijacks its brain so it spins a web fit for a wasp nest while the parasites steals the nutrients from the spider and when it's done spinning the web the parasite kills it and releases wasps to continue the cycle Edit: its called the "ZATYPOTA PERCONTATORIA"