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Why Do More Species Live Near the Equator?

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Go to http://Raceforretirement.com and see how the action gap affects you. Follow all of our Peru adventures on this playlist: http://bit.ly/SmartPeru ↓ More info and sources below ↓ Special thanks to Rainforest Expeditions for hosting us! Visit http://www.perunature.com/ References: Wilson, E.O. "The Diversity of Life" http://eowilsonfoundation.org/the-diversity-of-life/ Eichhorn, Markus P. "Latitudinal gradients." Natural Systems: The organisation of life: 249-264. "Tropical Ecology" (textbook) by John Kircher (2011) http://press.princeton.edu/titles/9486.html Condamine, Fabien L., et al. "What causes latitudinal gradients in species diversity? Evolutionary processes and ecological constraints on swallowtail biodiversity." Ecology letters 15.3 (2012): 267-277. Jenkins, Clinton N., Stuart L. Pimm, and Lucas N. Joppa. "Global patterns of terrestrial vertebrate diversity and conservation." Proceedings of the National Academy of Sciences 110.28 (2013): E2602-E2610. Mannion, Philip D., et al. "The latitudinal biodiversity gradient through deep time." Trends in ecology & evolution 29.1 (2014): 42-50. Mittelbach, Gary G., et al. "Evolution and the latitudinal diversity gradient: speciation, extinction and biogeography." Ecology letters 10.4 (2007): 315-331. Wiens, John J., et al. "Evolutionary and ecological causes of the latitudinal diversity gradient in hylid frogs: treefrog trees unearth the roots of high tropical diversity." The American Naturalist 168.5 (2006): 579-596. ---------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Facebook: http://www.facebook.com/itsokaytobesmart Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Tumblr: http://www.itsokaytobesmart.com Instagram: http://instagram.com/jtotheizzoe Snapchat: YoDrJoe Produced by PBS Digital Studios Music via APM Stock images from SciencePhoto http://www.sciencephoto.com/ and Shutterstock http://www.shutterstock.com
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Text Comments (1108)
Its the urban area
Jakob D (1 day ago)
Most of the roded land is used to feed livestock. We need to stop the vicious cycle by ceasing the age of meat. We're better than this
Sumita Guha Neogi (1 day ago)
Your way of presentation is very very nice...
Rosie Fay (2 days ago)
1:45 That's a grossly unfair comparison. Compare equal areas of land. How many species in, say 1000 km^2 of tropical rainforest v 1000 km^2 of boreal forest?
Mokkari77 (4 days ago)
Werner Herzog on the jungle: "Kinski always says it's full of erotic elements. I don't see it so much erotic. I see it more full of obscenity. It's just - Nature here is vile and base. I wouldn't see anything erotical here. I would see fornication and asphyxiation and choking and fighting for survival and... growing and... just rotting away. Of course, there's a lot of misery. But it is the same misery that is all around us. The trees here are in misery, and the birds are in misery. I don't think they - they sing. They just screech in pain. It's an unfinished country. It's still prehistorical. The only thing that is lacking is - is the dinosaurs here. It's like a curse weighing on an entire landscape. And whoever... goes too deep into this has his share of this curse. So we are cursed with what we are doing here. It's a land that God, if he exists has - has created in anger. It's the only land where - where creation is unfinished yet. Taking a close look at - at what's around us there - there is some sort of a harmony. It is the harmony of... overwhelming and collective murder. And we in comparison to the articulate vileness and baseness and obscenity of all this jungle - Uh, we in comparison to that enormous articulation - we only sound and look like badly pronounced and half-finished sentences out of a stupid suburban... novel... a cheap novel. We have to become humble in front of this overwhelming misery and overwhelming fornication... overwhelming growth and overwhelming lack of order. Even the - the stars up here in the - in the sky look like a mess. There is no harmony in the universe. We have to get acquainted to this idea that there is no real harmony as we have conceived it. But when I say this, I say this all full of admiration for the jungle. It is not that I hate it, I love it. I love it very much. But I love it against my better judgment."
Craig Page (4 days ago)
YonI (7 days ago)
That's because the weather is consistent meaning the rain comes on time there is no time change the sun rises and sets at the same time also oxygen
nana mch (7 days ago)
have you ever feel like you're so proud of yourself after finishing an essay or anything? this video gave me that feeling eventho i'm not the one who made it. THIS IS AN AMAZING VIDEO!!
Pedro Marcelino (9 days ago)
Cool moustache.
Dragomir Ronilac (9 days ago)
It is presumption because we don't know all the spieces. And we overlook things around us being excited by exotic.
Otey Wancho (11 days ago)
Gotta love those facial hair
michael halim (12 days ago)
Too bad almost every country that life near the equator is some shithole country with bad behavior people. Take an example indonesia.
kassie raine (16 days ago)
4:31 There was "A Beautiful Mind" moment thinking about how competition and niches might apply to economic theory.
Camo HH (16 days ago)
Because there aren't Humans!
LOVE OF PLANTS 🌻 (19 days ago)
Speciation is fast in many orchids. They are often extreme specialists and they can propagate intergenerically and produce viable seeds.
Sharmishtha Basu (24 days ago)
Loved it. Your channel is daily diet of nutrition for people like me who love information in easy language.
Hannah Kaye (24 days ago)
In the Philippines we have a lot of species
Mikky Z (1 month ago)
the name of the channel almost makes me wanna barf tho
mradhayuda1 (1 month ago)
I love rain forest. ill die in subtropis area.
Empathy Module (1 month ago)
because it’s warm
0123mandatory (1 month ago)
I Iike how the earth rotates, it really makes my day
WAT (1 month ago)
i want to take ketamine and chill/cuddle with the snow makeup bear at 3:09
xiz0808 (1 month ago)
guy from the Americas that says "niche" correctly!! i am stunned
ttrtoy (1 month ago)
This totally leaves out the human factor. Yuval Noah Harari neatly describes how there was a wide variety of species all around the globe but as humans (or actually their predecessors) only lived in Africa, only those species could adapt to them. The moment humanity went out to the world it ensured the extinction of a high amount of species wherever they went. Australia is a great example for this due to our late arrival there...
Winner Minner (1 month ago)
Tambopata National Reserve, Peru A breathtaking tropical rainforest located between Cuzco and Bolivia, the Tambopata National Reserve in the Peruvian Amazon is one of the world’s most biologically diverse areas. Nearly one-third the size of Costa Rica, Tambopata has more species of birds (595) and butterflies (more than 1,200) than any place of similar size on earth, reported The New York Times. "Environmentalists claim that the [reserve's] great diversity of wildlife is due to its location at the confluence of lowland Amazon forest with three other ecosystems," according to an article in the Times. "At least 13 endangered species are found here, including the jaguar, giant otter, ocelot, harpy eagle, and giant armadillo." The reserve is also home to the world's largest known mineral clay lick, where hundreds of parrots and macaws of up to 15 species congregate daily to ingest the detoxifying clay.
Antonio Maria Schiavo (1 month ago)
Very good video!
Rai (1 month ago)
The first time i saw a picture of Arizona at sunset and what hour it was shocked the little me 😂 I've lived in central America all my life
J. • (1 month ago)
I feel like I was taught about this on a smaller difficulty level in middle school I just don’t remember
Harsimran Singh (Dino) (1 month ago)
Thank you for the video.
Henry Fuentes Riccardi (1 month ago)
Technology kills Nature, it is importante to keep mining, and oil companies away from the Amazon. Of course that is just my opinión, because the jungle Will get exploited no matter what.
Gel g (1 month ago)
Why would anyone thumb down this amazing video?
matthew houlihan (1 month ago)
Frosto32 (1 month ago)
Evolution is a belief system. It went from scientific investigation to an adopted lifestyle lol but they don't realise it.
WhyteLis21 (1 month ago)
The real question here is will evolution by the tropical equator give us super powers? 😁
Lego Robloxian (1 month ago)
So, if i live next to the equator i can turn into a chicken quicker? Cool! im moving house!
Lord Skeptic (1 month ago)
Because there is more land (if you include the seabed)
Jonathan Ryals (1 month ago)
Because the equator is the longest line of latitude. The poles are single points. How about which section of longitude has the most species?
Caklutfi (1 month ago)
Now i know why there are 300 milion people in indonedia
Rafael Vargas (2 months ago)
Great video! I wish he would have talked a little more about the differences on the metaphorical views of the tropics as a “cradle” vs “museum” both are fascinating, they share similar views but are different from each other.
Dispose Able (2 months ago)
Because it is warm and moist.
Maha Rajan (2 months ago)
Because no whites
eric taylor (2 months ago)
Why would anyone thumbs down this. Hate learning?
Paola Sanchez (2 months ago)
Amazing channel! I just discovered it and I’m very excited with all the content! Really well done and interesting!
psychedelic psychonauts (2 months ago)
energy field, electromagnetic field of the earth from north pole to south pole meets at the equator... the merging of all duality ( hot - cold, positive - negative, feminine - masculine etc ) reach the point of equilibrium and the harmony creates living organisms... that's why the first live form, the first civilisation must came from the equator and spread out from there...
Clint Wolf (2 months ago)
Terrific, very interesting video,
mahesh debata (2 months ago)
Nëutt Matthew Nord (2 months ago)
He looks like finn btw.
Anubhav Yadav (2 months ago)
very nice effort
Traste Silvestre (2 months ago)
Seriously your channel is the best of YouTube! Every single video is just incredible!!!
josie jesie (2 months ago)
because its warm. because of that, useless creatures born. like stupid people. stupid useless people. like me and other hundred of millions of asian.
Blazing X (2 months ago)
Abbz Malik (2 months ago)
Beautiful video amazing stuff
Archerubi (2 months ago)
this video makes me cry
donn patez (2 months ago)
The amazon is a true natural lab.
RED REBEL (2 months ago)
Am I the only one that thinks he's hot AF
kashmir daily (2 months ago)
Makes people smart..
EVIL Co. (2 months ago)
Because of the "Sun".
Kai Øveland (2 months ago)
Thanks for the series. I have been in the rainforest at Tambopata in Peru. A relay great place to experience the jungle and its life. Even in the rain season it was sun every day. Keep a good repellent on you and take some antidote(medic) before venture there. Trees smells like garlic, silent sunset, wake up call from howling apes, crickets sounds like chainsaw.. Btw the grey tarantella (2,12 min. in the video) is huge but not poisonous.
Brexit Refugee (2 months ago)
Centrifugal forces drag them all down from the poles obviously.
Amaya Køhler (2 months ago)
master chief (2 months ago)
thats why india is very populated sorry for my bad english 😂🙏
Collab Comm (2 months ago)
Because white people don't live there
Aditya Chaudhary (2 months ago)
so amazing video :o
Daniel Samper (3 months ago)
This dude is way too pasty to film in the rainforest LOL
Rutwik Navalgund (3 months ago)
Dre_Rocstar3k (3 months ago)
Could this be the same reason it’s said that the first humans developed around the equator? 🤔
Kim Butterfly (3 months ago)
Is Philippines near equator? Or not? Please answer me
Noan Manji (2 months ago)
Palindromeda 33 (2 months ago)
no name what? Yes it is.
dh (2 months ago)
Kim Butterfly no
Manuel Hidalgo (3 months ago)
Hi there, are you planning to come back to Peru?
voodoored321 (3 months ago)
2:22 quick question, on simulation -- does the earth really rotate like that?
forestchildnazka (3 months ago)
He's so cute
AY Blackie (3 months ago)
2:36 ... U are welcome.
knurdisms (3 months ago)
This man is interesting and insightful and these videos are handsome and quite attractive.
Pizza Rat (3 months ago)
Completely unrelated but this guy seems really chill and cool
Bryan Cerros (3 months ago)
Good footage, boring host
Dhanesh Nair (3 months ago)
Very informative, thanks a lot.
Conor Kelly (3 months ago)
Great video. But You know i am beginning to hate that word diversity nowadays and the amount of times he says it is unreal. That word is starting to sound toxic.Just wondering did Mr Soros sponsor that video.I could be wrong.
Artur H (3 months ago)
That mean global warming is good for the animals.
Arnav Bhattacharyya (3 months ago)
Everything is life.
luis gonzalez (3 months ago)
Nice weather duhhhh
diamanty pitung (3 months ago)
Thanks man, you're such a big help
Aditya Vaid (3 months ago)
that explains that the cradle of civilisation is not the colderzones, where the whiteman comes from. there r more prana of life force in the tropics more ancient civilisations too.
Alay Pal (3 months ago)
Promise to stay curious.
Richard Andrews (3 months ago)
"Stay curious", turns around and stares into the distance.. haha I couldn't stop laughing
Zeebaneh (3 months ago)
Why are they saying that evolution is true?
vince pie (3 months ago)
Temperature ranges, and moisture. The end
triana utami (3 months ago)
Iceqau Tsaroc (3 months ago)
I live in the Atlantic forest biome, there's so many species here that are endemic and wonderful.
Caz Gerald (3 months ago)
Before the video starts I'll take a stab at the answer(s). 1. stable climate; 2. ok I'll watch the video ;)
Lee Bowers (3 months ago)
Interesting that we might be able to extrapolate this theory when searching for life on other planets ,not only finding planets in the habitable zone but situated at the right angle and axis to a star or star cluster.
M Jave (3 months ago)
Can first world with resources help these countries to keep the forest 🌳 safe? Money 💰, woods, different materials to build houses? More resources to live rather than wars and looting them please?
Silas Okwoche (4 months ago)
Following the presenter's logic, a theory of faster evolution in the tropics doesn't make sense. It appears it should be exactly the reverse because the natural selection drivers for species adaptation aren't really active since the environment is stable and conditions are fairly constant in the tropics... or am I missing something?
CRIS DAMPILAC (4 months ago)
isn't its obvious? hehe
Wealth Building (4 months ago)
This was great. Only one issue. It has been proven that plants do not engage in competitions, they literally communicate with one another and work together. check out ted talk "how trees talk". Thanks for the video.
Daniel Fuller (4 months ago)
Any effort to "save the rainforests" without respecting the rights of indigenous peoples is doomed to fail: https://thediplomat.com/2015/10/indigenous-communities-and-biodiversity/ https://www.reuters.com/article/us-latam-landrights-idUSKCN1175A1 http://theconversation.com/to-conserve-tropical-forests-and-wildlife-protect-the-rights-of-people-who-rely-on-them-74802
Dave (4 months ago)
"Plants and animals grow up faster in the equator" I'm sorry if I missed it, but I didn't hear the reason why they grow up faster
Junjun (4 months ago)
Holy hell. That is one big spider.
TheHyperfreak4 (4 months ago)
Very interesting video. This threw up the question why humans survive better in intermediate climate regions...
Michaud Lormil (4 months ago)
Maybe because that’s where they started before migration!
Michael Jayson Banua (4 months ago)
I saw "Trump caterpillar"... OMG.
Trepach III (4 months ago)
I have the exact same globe as kn the thumbnail

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