Hank, you are my new hero! I teach an animal studies class and I have only just discovered CrashCourse and I am in LOVE!! You make these topics exciting to learn about and easy to understand. I cannot thank you enough for sharing your wonderful brain with the world! :)
*I loved this episode!* Thanks Hank and the producers, there really isn't much to find about Ethology on the net. I have an important project in school next week and this really saved me a lot of time.
A note on those South American vampire bats; they also exhibit tit-for-tat. In a somewhat cruel experiment, researched grabbed some bats leaving the nest and injected their sacs with air using a syringe and shoved them back in the nest. To their neighbors, these bats appeared to be engorged, having lots of blood to share, but this was only an illusion so the bat doesn't feed the other's babies. In return, the other mothers won't feed the babies of the bat perceived as not sharing with the others.
Taking this as a class in my next and final semester before earning a BS in Wildlife Conservation & Biology and this was a wonderful introduction / crash course. Thank you!
Can't wait! I recently made a video about dreaming based on my own observations of earthlings. I wonder whether my hypotheses match with earthlings theories.
Hi. Great video! Although I have a couple of comments. First - I would say that the 2 main tasks in an animals life is Survival and Reproduction, where finding food is but one part of survival. In fact, I would boil it down to just one: Reproduction, as all other behaviors ultimately serves reproduction, and without it, no other traits will be passed on. Second. You make the same mistake as many of my students: mixing up Tinbergens question 3 ( adaptive value) and 4 (evolutionary history). Your explanation for question 4 is actually an answer to question 3. An answer to question 4 could be something like: "Pheromones are used by many types of mammals and is likely to have evolved long ago... however, the specific sex pheromone used by this hamster is unique for this species, thus it is a fairly recent modification to the smell, possibly as a means to avoid interbreeding with other hamster species". In other words: question 4 asks to what extent the behavior could be explained as a a phylogenetic "leftover" from evolution acting on ancestors. /Andreas (Lecturer in Ethology and Behavioral Ecology)
The History (or Phylogeny) - question has to do with the evolutionary past of the animal. One example is goosebumps - there is probably no Function for this in humans. But seeing how animals with their fur intact use the same reflex to fluff their coat when chilly, shows that the History explanation is key to understanding why humans have this behaviour.
Hank, I think you should talk about the relationships in which animals and plants need to live, a 'micro-world' if you will. especially those in the Galapagos islands and talk about how many external factors like the weather and sea temperatures play a crucial role in shaping said relationships.
If "animal behavior" is doing something that simply helps you survive and reproduce, then the definition of sentience is finding an activity more desirable than survival. I'm so glad that I'm sentient.
Brennan Cattermole How are you doing in uní? Any advice? I’m thinking about the same pathway, but need advice and help because I’m still not exactly sure what to do.
I also knew a long-haired tortoiseshell called Cameo that deserved constant attention. Let's just say if she finds a long-lost sister called Bloomer, Bloomer is gonna be pissed.
Most dogs aren't latched in their crates very often, and there are a lot of benefits to having one. First, it gives the dog a place where they can go if they feel stressed. Second, it's a convenient place for a bed, which also ties in with making the animal feel comfortable. Thirdly, if there's an emergency or a dangerous situation, you can put them in their crate and latch them in there until everything's been dealt with. For instance, it's really useful if you need to clean up broken glass.
Thanks for reminding me to feed my cat. Sometimes it's hard to tell if he's begging for some food or just being super affectionate because of how much he loves me. Now to wait a few minutes for him to barf up his tasty treats because he always eats too fast. *sigh*
Hey do you guys have like a note sheet? Like typed up notes of what you guys talked about? It would be really nice to have that... :) I really like this. Much more fun than regual class.
It's a Cameo cameo! and a Lemon cameo! Hey, why does my kitten chase her tail? I'm scared she's going to get hurt becomes sometimes she does it on stairs and then falls down them which is adorable, but worrying.
Regarding Bower Birds, many would argue that they do not collect garbage, but aggregate piles of trinkets with specific and unifying aesthetic characteristics. lol
Yay ethology. I would have enjoyed a brief discussion of human behavior and what is and isn't adaptive but I appreciate the limitation of time. Maybe in another ep?
Separate comment for this. Communication occurs where animals transfer information, not necessarily talking, humans also use body language, tone and writing as well as speech. Animal communication could be codified into a 'language' e.g. ground squirrel signals for different predators. If directed communication is required then animals will be physically able to, if not then they won't. It's not that they're stupid, just that they don't need to, we're not weak because we can't lift tree trunks.
Somebody pointed this out on the Sci Show episode, and it's still true now. < this thing here means it's an INEQUALITY, not an equation. = this thing means it's an equation.
These behaviorists are using the archaic notions of the past Hank. I'm really glad you weeded out the instinct driven reasoning for animal behavior, but the focus on stimulus needs to be down played. Of course stimulus of the animals senses gives them the ability to understand their world their personality and emotional state are still the drivers to their behavior. When we put the labels on a fluid system like animal life we are only making generalized assumptions. For example why do we call herbivores plant eaters when they all have been noted to eat animals as well. Cows on farms eat little kittens and chicks. White tailed deer eat fledgelings right out of nests and cats can live on a 70% corn diet. The preferences of animals as a species is a loose guideline on the individual level. So the actual individualistic differences of every animal are in fact the behavior controls. Like the male hamster running to mate, do you realize you have to take in account all the males who smelled the pheromone and did not run to mate. Not taking a course of action is just as important as taking a course of action. I have devoted nearly all of my adult life to this subject and have found some very amazing research experiments along the way. Just the fact that animals have different personalities is more profound that most are realizing.
Hey, I understand this response is 3 years late, but any way you could recommend or link some of these research pieces/ experiments for people interested in this kind of thing?
As a stop-gap until these videos are made, I may be able to help. There isn't much of a 'hive-mind' for the cooperative breeders such as the Hymenoptera (Bees, ants, and the like). If you're interested, look into the evolution of emergent behaviours. Each ant works to do what it's own impulses tell it to do and when you look at the colony it seems as though the whole thing is working together (Same thing with flocks of birds flying in unison). So yeah, emergent properties, not hive mind.
Vampire Bats regurgitating blood into the mouths of their comrades is somehow both heartwarming and terrifying. So thanks for that.
I bet when we shoot a bunch of bombs into the air because of an important date (July 4th) Dogs must have the same thought.
I have a Biology exam tomorrow and these videos are saving my life
D.N. K.
D.N. K. Gay
@@BeanDar why do you have to say that, it's just another comment on the internet.
@@cordless157 Look here bud, you better get back to your own stepping grounds. Mind your own turf
😂 That escalated real quick
Hank, you are my new hero! I teach an animal studies class and I have only just discovered CrashCourse and I am in LOVE!! You make these topics exciting to learn about and easy to understand. I cannot thank you enough for sharing your wonderful brain with the world! :)
*I loved this episode!*
Thanks Hank and the producers, there really isn't much to find about Ethology on the net. I have an important project in school next week and this really saved me a lot of time.
Green's cat, not to be confused with Pavlov's dog.
I see what you did there
You can explain things in 10 min better than my ethology professor in few hours. Thank you :)
the SciShow team also produces the CrashCourse Biology videos... we're the same people!
I can across your video on Turbo Feline Roadmap - there's many great videos there that will help out
*OK* , SciShoww.... Nobody asked you...
There is a video on dreaming planned for the SciShow channel. Look for it there in September!
Hank you are awesome. Great job with your Team on these videos. I appreciate your hard work in this crash course. Keep up the great work.
A note on those South American vampire bats; they also exhibit tit-for-tat. In a somewhat cruel experiment, researched grabbed some bats leaving the nest and injected their sacs with air using a syringe and shoved them back in the nest. To their neighbors, these bats appeared to be engorged, having lots of blood to share, but this was only an illusion so the bat doesn't feed the other's babies. In return, the other mothers won't feed the babies of the bat perceived as not sharing with the others.
Angelina Rigsby Wow, that's fascinating!
What experiment is this please?
You had me at: "My cat" :3 Also the fact that Crashcourse Biology is always fascinating BUT MOSTLY KITTY =^.^=
Through the whole video, I couldn't help thinking, "When does Cameo get a treat?"
D'awww... Lemon and Cameo are so dang adorable... The video was awesome as well.
Taking this as a class in my next and final semester before earning a BS in Wildlife Conservation & Biology and this was a wonderful introduction / crash course. Thank you!
This was the first crashcourse episode I've watched and I just have to say that this is brilliant. Thank you very much.
I've been in Hank's living room. It's like we're friends now.
fastest way to feel old on the internet. rewatching the first crash course video you saw lol.
Thank you to Cameo for making a cameo
Aw, Cameo. What a gorgeous cat!
You make learning fun. I could literally listen to you all day. You rock...
What kind of cat is cameo? She is very fluffy :D
She is planning to eat hank
I LOVE YOUR CAT!!! you're officially my favorite person!!!!! love the show :)
Salaam to Hank Green. You are awesome teacher. One of my fav teacher. Thanks
Can't wait! I recently made a video about dreaming based on my own observations of earthlings. I wonder whether my hypotheses match with earthlings theories.
your dog is so cute! I paid attention tho, i promise! :)
Your cat would make a great intro to random X inactivation and the tortoise shell / calico coat color!
Despite this being a very interesting episode, all I want to say is that Lemon and Cameo are so adorable
Chicks dig nerds that can dance? Ladies...
YES!!!!!!!!!!!!!!! Step 1: look good and step 2: know how to dance
Kyle Thum I'm 1 for 2, and it isn't the first one...
i'm mean, its not a lie so...
The way he acts with animals and insects is adorable LOL
Hi. Great video!
Although I have a couple of comments.
First - I would say that the 2 main tasks in an animals life is Survival and Reproduction, where finding food is but one part of survival. In fact, I would boil it down to just one: Reproduction, as all other behaviors ultimately serves reproduction, and without it, no other traits will be passed on.
Second. You make the same mistake as many of my students: mixing up Tinbergens question 3 ( adaptive value) and 4 (evolutionary history). Your explanation for question 4 is actually an answer to question 3. An answer to question 4 could be something like: "Pheromones are used by many types of mammals and is likely to have evolved long ago... however, the specific sex pheromone used by this hamster is unique for this species, thus it is a fairly recent modification to the smell, possibly as a means to avoid interbreeding with other hamster species". In other words: question 4 asks to what extent the behavior could be explained as a a phylogenetic "leftover" from evolution acting on ancestors.
/Andreas (Lecturer in Ethology and Behavioral Ecology)
The History (or Phylogeny) - question has to do with the evolutionary past of the animal. One example is goosebumps - there is probably no Function for this in humans. But seeing how animals with their fur intact use the same reflex to fluff their coat when chilly, shows that the History explanation is key to understanding why humans have this behaviour.
ok boomer
Fantastic as always Hank!
CATS ARE AWESOME!!! That's really all I need to say, the show is awesome but everybody here should already know that.
No, you can do anything you want, Marty, you are an awesome human being.
Thanks Hank! You're a better teacher than my university lecturer
"The only two things that matter - eating and sex" is a rather sad statement...
My tennis coach abides by it
hasn't led me wrong yet!
I'm so glad you made an animal behavior video.. I'm gonna major in this!
Lemon, we miss you!
Just the visual of hamster skiddaling in preparation for boot knocking was the worth the price of admission to this video
1:12 Can we just accept the fact that the dog simply looks depressed
A Cameo cameo! Those are the best!
Aw, Lemon and Cameo are so cute! :)
Hank, you're the reason i'm going to get a good grade in biology
Been subscribed since episode one, but this is the first episode I've seen. It wasn't bad
Interesting video that makes this area simple and relevant
Hank, I think you should talk about the relationships in which animals and plants need to live, a 'micro-world' if you will. especially those in the Galapagos islands and talk about how many external factors like the weather and sea temperatures play a crucial role in shaping said relationships.
If "animal behavior" is doing something that simply helps you survive and reproduce, then the definition of sentience is finding an activity more desirable than survival.
I'm so glad that I'm sentient.
You helped me so much on the AP bio exam. You don't even know.
So Thanks!
I would just like to state my appreciation for the increase in the cute animal quota.
yaaaaaaaaaaaaaaaaay!! thank you so much for doing a video on behavior :)
YES!!!! I study animal behavior for fun, so this was awesome!!!
Loving your video was very useful for my veterinary technician studies :) thanks!
HELL YES I DIG NERDS WHO CAN LEARN DANCES
Love Crash Course!
Such a beautiful cat.
Thank you to Cameo for the cameo
Wow...used this guy in my GCSEs when he was at sci show and now im taking my animal behaviour at uni and he STILL is useful😂
Brennan Cattermole How are you doing in uní? Any advice? I’m thinking about the same pathway, but need advice and help because I’m still not exactly sure what to do.
What is the difference between Morphology and anatomy?
Aah what to say.. Amazing videos.. Thanks a lot...
I also knew a long-haired tortoiseshell called Cameo that deserved constant attention.
Let's just say if she finds a long-lost sister called Bloomer, Bloomer is gonna be pissed.
Most dogs aren't latched in their crates very often, and there are a lot of benefits to having one. First, it gives the dog a place where they can go if they feel stressed. Second, it's a convenient place for a bed, which also ties in with making the animal feel comfortable. Thirdly, if there's an emergency or a dangerous situation, you can put them in their crate and latch them in there until everything's been dealt with. For instance, it's really useful if you need to clean up broken glass.
Thanks for reminding me to feed my cat. Sometimes it's hard to tell if he's begging for some food or just being super affectionate because of how much he loves me. Now to wait a few minutes for him to barf up his tasty treats because he always eats too fast. *sigh*
Awesome Video and humorous.
Aaaaah Lemon... I am feeling all the feels...
I was saying he was "scratching" an itch. You can't Itch and itch. Some people say it but it is a very informal way of saying it.
Canadian Geese! I live a stones throw from the lack in my city and there are so many of them. They are also really loud!
This is really great. I'm doing an essay on ethology and this will help so much.
Cameo is like my grandmother's late cat, Piika. Bless, she looked so much like Cameo... it's odd now since Piika's gone.
What an adorable kitty! XD
Gracias por este excelente material de apoyo para docentes! que bueno poder trabajar en versiones subtituladas al español. Un abrazo desde Colombia
It's a Cameo cameo! :D
+Melinda Meyer =D
CAMEO IS SO CUTE I LOVE HER
l'm curious about the book you are reading in this video. I tried looking it up but I was unable to find it.
Cameo reminds me of my cat Misty. :) Both are adorable.
8:35 We should train that bird to dance like Ricardo, that behaviour will quickly be selected for throughout the species xD
A cat named Cameo? Total win
Hey do you guys have like a note sheet? Like typed up notes of what you guys talked about? It would be really nice to have that... :) I really like this. Much more fun than regual class.
It's a Cameo cameo! and a Lemon cameo!
Hey, why does my kitten chase her tail? I'm scared she's going to get hurt becomes sometimes she does it on stairs and then falls down them which is adorable, but worrying.
Kudos to all the ladies promoting intelligence as an evolutionary trait!
Bower birds?
wait for it ... BECKY, LEMME SMASH!
OMG! You have a greyhound
THIS IS EXCITING. HOW COME I DIDN'T KNOW CRASHCOURSE HAD AN ANIMAL BEHAVIOR VIDEO BEFORE? I am mad at myself now.
Another great vid. Thank you.
I really like your videos ❤️💎❤️💎❤️
Regarding Bower Birds, many would argue that they do not collect garbage, but aggregate piles of trinkets with specific and unifying aesthetic characteristics. lol
Yay ethology. I would have enjoyed a brief discussion of human behavior and what is and isn't adaptive but I appreciate the limitation of time. Maybe in another ep?
Thank youuuuu
I wish good luck to Hank
Are there plans for crash courses on other topics?
YOU HAVE REALLY COOL GRAPHICS
Separate comment for this. Communication occurs where animals transfer information, not necessarily talking, humans also use body language, tone and writing as well as speech. Animal communication could be codified into a 'language' e.g. ground squirrel signals for different predators. If directed communication is required then animals will be physically able to, if not then they won't. It's not that they're stupid, just that they don't need to, we're not weak because we can't lift tree trunks.
Watching you not give that cat a treat for ten minutes was one of the most agonizing things I have ever endured.
Nature is awesome
I saw a Djembe over there at the end of the video! Does Hank play?
Cameo, thank you for your cameo.
Somebody pointed this out on the Sci Show episode, and it's still true now. < this thing here means it's an INEQUALITY, not an equation. = this thing means it's an equation.
Yay Cameo!
what book would you recommend reading for animal ethology ?
These behaviorists are using the archaic notions of the past Hank. I'm really glad you weeded out the instinct driven reasoning for animal behavior, but the focus on stimulus needs to be down played. Of course stimulus of the animals senses gives them the ability to understand their world their personality and emotional state are still the drivers to their behavior.
When we put the labels on a fluid system like animal life we are only making generalized assumptions. For example why do we call herbivores plant eaters when they all have been noted to eat animals as well. Cows on farms eat little kittens and chicks. White tailed deer eat fledgelings right out of nests and cats can live on a 70% corn diet. The preferences of animals as a species is a loose guideline on the individual level. So the actual individualistic differences of every animal are in fact the behavior controls.
Like the male hamster running to mate, do you realize you have to take in account all the males who smelled the pheromone and did not run to mate. Not taking a course of action is just as important as taking a course of action. I have devoted nearly all of my adult life to this subject and have found some very amazing research experiments along the way. Just the fact that animals have different personalities is more profound that most are realizing.
Darren Pellichino links to your research?
Hey, I understand this response is 3 years late, but any way you could recommend or link some of these research pieces/ experiments for people interested in this kind of thing?
Thanks for this Hank, always been interesting to me, might do this module at uni :D
More videos with cats in them! More!
As a stop-gap until these videos are made, I may be able to help. There isn't much of a 'hive-mind' for the cooperative breeders such as the Hymenoptera (Bees, ants, and the like). If you're interested, look into the evolution of emergent behaviours. Each ant works to do what it's own impulses tell it to do and when you look at the colony it seems as though the whole thing is working together (Same thing with flocks of birds flying in unison). So yeah, emergent properties, not hive mind.