Parasites: Crash Course Zoology #11
Vložit
- čas přidán 30. 07. 2024
- Nearly every environment on Earth - and that includes animals - is home to some kind of parasite. Today we’re going to talk about parasites not just because they’re an essential part of their ecosystems, but also because by studying them we can learn more about their hosts and even their shared evolution and ecology. So stick with us, this one is going to get a little weird!
🦔🐒🐝🐛🐘🐍🐀🐠 🐢🐋🐅🦓🦇🦜🐜🪱🦑 🦀🐊
Learn more about Rae here! www.raewynngrant.com
Watch our videos and review your learning with the Crash Course App!
Download here for Apple Devices: apple.co/3d4eyZo
Download here for Android Devices: bit.ly/2SrDulJ
Crash Course is on Patreon! You can support us directly by signing up at / crashcourse
Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
Vincent, Emilee Murphy, Michael Wang, Jordan willis, Krystle Young, Michael Dowling, Alexis B, Rene Duedam, Burt Humburg, Aziz, Nick, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Rachel Creager, Jennifer Smith, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, Brandon Westmoreland, team dorsey, Trevin Beattie, Divonne Holmes à Court, Eric Koslow, Indika Siriwardena, Khaled El Shalakany, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Andrei Krishkevich, Sam Ferguson, Eric Prestemon, Jirat, TheDaemonCatJr, Wai Jack Sin, Ian Dundore, Jason A Saslow, Justin, Jessica Wode, Mark, Caleb Weeks
__
Want to find Crash Course elsewhere on the internet?
Facebook - / youtubecrashcourse
Twitter - / thecrashcourse
Tumblr - / thecrashcourse
Support Crash Course on Patreon: / crashcourse
CC Kids: / crashcoursekids
#CrashCourse #Zoology #PBSNature
I love that the bear just stares blankly ahead like "haha what"
Petition to classify bear-specific parasites as "bearasites"
I specifically remember Trichinosis spiralis from parasitology class because humans can be infected by it. I wrote in bold *Don't eat raw bear meat* in my notes
A parasitology class sounds like it would be very practical and useful to take, wish I had that opportunity
A special love to the parasites who share my Netflix account
😂😅
Children am I right?
🤣🤣🤣
That's kinda funny.
The horror movie genre of animals
THAT Parasite reference at 4:20
Cool one, Crash Course!
I was wondering what that was about… too bad I haven't watched that movie (yet)!
10:11 I feel sorry for that fish
A shout-out to parasites. A topic that's growing on me 😜
🌸Like 💫a 😶damn ✨ sociopath 🎶
It's inside all of us.
Hopefully it’s not growing in you as well
@@Vanillastump
Sus
I have no idea whether there are parasite around me or in me, which makes it all the more terrifying.
I like your positive voice and narration style, i feel like im on a field trip or a tour😀 keep up the great work
I was waiting to see the bear slowly freakout as she went trough the list of parasites on and in him: What?!?! Get out. Get out!!!.
That bear's looking at me like "Did she just say 'bear juices'?"
Can we still get rid of the ticks and mosquitos?
Was that a tarantula hawk wasp with the spider? I love those things, they’re terrifying!
Parasites are important to the ecosystem, I think I should be a parasite conservation expert.
My video: ...parasitic castration...
Family: what the heck are you watching?!
Invasive Parasites are Annoying though not gonna lie...
I love every single species on earth except two... Mosquitoes and
Considering it make me Allergic to Meat... Ticks...
Exactly the two species I could do without. However, in opposite order.
I always thought symbiosis meant both parties benefit, and was not a descriptor for parasitism, in which only one party benefits. Hmm...
How does evolution work with those animals solely dependant on another?
Nice reference to the movie 'Parasite'. Thank you crash course/PBS for the great videos!
that infographic at 4:19 was a nice nod. nice
I admit that I'm slow. I didn't understand what the light bulb had to do with what she was saying.
Yeah, I don't get it.
@@joshuaychung It's a nod to the Academy Award winning movie "Parasite" where flickering lights play an important part in the story.
Thanks learning more and more!
Nice information and nicely explained 👍
> Lungworm
How do I delete memories?
I went to a parasite museum in Tokyo. Super cool place.
I kept thinking crash course zoology had already spoken about symbiotic animal pairings. Episode four. I looked at the previous episodes an there it was while crash course was speaking about meals, digestion and how animals obtain nutrients. Certain parasites kill their hosts simply consuming their host until death occures. While other parasites maintain the life of their host as being their meal tickets.
Will we be getting episodes on other types of symbiosis such as mutualism among animals?
Thank you
Love the host 🥁 but I wasn't ready for this one. Gave me the hebejebes😬
i hate ticks. in the last 10 years the tick population exploded. before that i could walk freely on grass and in the forests and not one single tick bit me. now they are everywhere.
Can't we just freeze the parasites and call it a day? Not so into the "preserving" thing for them.
Always best the crash course
Speaking of parasites, we have a lot here at home. FREELOADERS!
*Relatives*
How about kleptoparasitism? To which bears are sometimes.
RE the condor mite, why would a louse, an ectoparasite, have anything to do with the immune system of its host? I've heard talk about it in occasion, but I've never found an explanation.
Interesting ! 🦋🦋
Great !
Eugh, the actual sound of a wasp's wings being used here is not nice. I've taken to blasting mint essential oil in a diffuser frequently in order to keep them out of my room and I'm entirely too tuned into that sound. DX
Nice vid
Host: Aren't bears the best?
Me:Yup, love 'em
Host: Here's a bear? 🐻
Me:Aww cute
Host: She's riddled with parasites!
Me: 😨😭
This channel is like a revision of everything we know for someone who woke up from hypersleep millions of years ago or just aliens who know english and are curious
Good movie for the lunch break 🤣
YEAH JUST WANT I NEED MORE HOMEWORK. thank you i will enjoy it.
Parasitic Castration always makes me Shudder, Not cool bro.
are we technically parasites of bees? or is farming whole other ball of wax
Yep this is definitely the video I wanted to watch today
If you're interested in parasites I recommend "Parasites" by Carl Zimmer.
watching this made me very itchy
It's a humble request to moderator of this channel kindly add Hindi language in your caption. Because your many fans in India and love a lot to your channel. Hope you consider our request.🥰🙏
PLEASE DO MATHEMATICS CRASH COURSE. And do Pure Math, please!
cool
OMG the 4:21 lol
Opossums eat ticks? Send me some over here to europe, please ;P
Was our mitochondria once a parasite?
The definition of a parasite is an organism that gains benefit at another organism’s expense. Please correct me if I am wrong, but I do not believe the mitochondria particularly harmed its host cell. It was probably another form of symbiont like a mutualist, which, by definition both gives and gains benefit to and from its host.
Humans relationship to earth is very similar to what you just described.
Malthusian nonsense. You can't even measure or demonstrate what the earth is in its entiriy or even where it begins or ends (if at all).
I’m going to send this to my landlord
and then there are cleptoparasites that live by stealing, usually food from more accomplished hunters
Does bear spray get rid of parasites?
anyone else get really itchy this episode?
Where's CC Geography?
Insomnia sent me here at 2 am Jakarta time.
Maybe due to any animal inside me? 🐙🐙🐙
Where's John Green my best friend I miss him so much 😅😎
What happened to green brothers?
They have a dozen different channels they jump between. Check vlogbrothers
@ my toenail fungus: LEAVE ME ALONE
No mention of whale lice : (
After this.... I still hate parasites (worms, insects, etc.) those pesky weird and disgusting troublemakers 😝😝🤢🤮🤮🤮🤮🤮🤮🤮🤮🤮
You will never convince me that parasites are a good thing. Ugh, so gross..🤢
When I hear "Nematoads" all I can think about is Doug Funny... Gen X wont get it.
I was eating.... Thx...
Crazy Fact: In 2006, a Coca-Cola employee offered to sell Coca-Cola secrets to Pepsi. Pepsi responded by notifying Coca-Cola.
They're There, They're Their
No need to gender the hypothetical Bear
It does not exist, It is not aware
We can be more inclusive by referring to them as Their
A non-binary bear is just as good an example
and will have just as good of a parasitic sample
They're even just as good for a campsite trample
But don't run away and twist your ankle
I hope that this poem isn't too much to bear
but language is a powerful tool, we should use with flair
And mindful we should be, with our air
I hope I have not spoken in err
(Thank you for reading. I enjoy your videos Crash Course but it was a bit striking how much the host had to refer to the Hypothetical Bears gender in that short clip. In any scientific presentations I've given, I typically strive to refer to subjects in a bit different of a style and only include gender if it is of direct relation to to the topic at hand. In this use case I do not see a need to gender a bear to express parasites relations to North American Black Bears. Had the Reproductive system been involved then maybe. In this case each Parasite could have been found in any North American Black Bear, regardless of gender. I understand that not all may agree with this assessment but hope this has been insightful and can create a positive dialogue.)
Good social science educational channel 👍I am form india my dream one day go USA ❣️🙏
Ни ну нидмав що ведмеда так багато прзтив .Стрно що заствку забль е мотжор
😖😖😖😖😖
Can parasites have parasites?
Yes
"And the bear herself."
Can someone explain to a non native English speaker why the bear as treated as "her" not as "it"?
Nope
Probably wasn't the wisest choice to eat lunch while watching a video about parasitism. Oh well. Hopefully there were no worms in the fish I just ate.
Third one to comment
Watched the video. Didn’t even mention my ex. Thumbs down.
Congrats to anybody who is early and who finds this comment useful. 🌚🌝👊💯f
Heard dat :)