Visit me on FB: https://www.facebook.com/LeonardoPereznieto
Follow Fine Art Tips on Google+: http://goo.gl/TqsmiJ
Visit my website: http://www.artistleonardo.com/

Visit: http://www.fineartebooks.com/ for free drawing tutorials.

If you would like to invest in a drawing, painting or sculpture by Leonardo Pereznieto, or to hire him for workshops or lectures, please write to: info@leopereznieto.com (Business only, not for personal messages.)

List of materials:

Mechanical pencil Rotring with a 0.7, 2B lead
Yellow lead holder: 2mm, 6B lead
Pencil stick eraser Tombow
Notebook
12 Color pencil set Prismaldo I, aquarelle

If you would like to see photos and brands of my tools, please go to my blog about materials with the following link:

http://www.fineartebooks.com/howtodraw_drawingschool/My_Blog/Entries/2012/8/1_My_materials.html

You may also follow me on:

My Blog: http://www.fineartebooks.com/howtodraw_drawingschool/My_Blog/My_Blog.html

My Twitter: https://twitter.com/#!/ArtistLeonardo

Fine Art Tips on Google+: http://goo.gl/TqsmiJ

My Google+ page as an artist (with my sculptures, paintings, etc): http://goo.gl/n7p96D

My Instagram: http://instagram.com/artistleonardo

My LinkedIn: http://www.linkedin.com/profile/view?id=89957576&trk=tab_pro

My Vine: https://vine.co/v/hKnn3rbwJmT

My Pinterest: http://pinterest.com/ArtistLeonardo/

My VK: http://vk.com/leonardopereznieto

My website Leonardo Pereznieto: http://www.leonardopereznieto.com/leo/Intro.html

I wish you great creations!

Audio file(s) provided by www.jewelbeat.com

Drawing 3D Sharks on my Notebook! - 3D Anamorphic Drawing (Time Lapse)

The Tutto3: https://igg.me/at/tutto3
My drawing book: http://amzn.to/1K7L8Ed
O Art Int: http://oartinternational.com/
Visit me on FB: https://www.facebook.com/LeonardoPereznieto
My website: http://www.ArtistLeonardo.com/

Do you want to help me translating it into your language?
(Note: First check if it hasn´t been translated already by pressing the "CC" button on the lower part of the video).
All you need to do is to please go to the following link and translate. Thank you!:
http://www.youtube.com/timedtext_video?v=4DVf8CtoQSY&ref=share

If you would like to invest in a drawing, painting or sculpture by Leonardo Pereznieto, or to hire him for workshops or lectures, please write to: info@artistleonardo.com (Business only, not for personal messages.)

List of materials:

Mechanical pencil: ArtistLeonardo Tutto3, with 0.3mm 2H lead, 0.5 HB and 0.7 mm B lead
Kneaded eraser Prismacolor
Fabriano white drawing paper, fine grain

If you would like to see photos and brands of my tools, please go to my blog about materials with the following link:

http://fineart-tips.blogspot.m....x/2015/07/my-drawing


Download Fine Art-Tips mobile app:

On the Apple Store:

For iPhone/iPad free: https://itunes.apple.com/us/ap....p/fine-art-tips-draw

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You may also follow me on:

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My VK: http://vk.com/leonardopereznieto

My website Leonardo Pereznieto: http://www.leonardopereznieto.com/leo/Intro.html

I wish you great creations!

Audio file(s) provided by http://www.audiomicro.com

This tutorial shows How to Shade - How to draw an egg - Shadows

Get a 25% discount on the course: https://www.udemy.com/how-to-m....odel-an-eagle-in-cla

Visit me on FB: https://www.facebook.com/LeonardoPereznieto
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Do you want to help me translating it into your language?
(Note: First check if it hasn´t been translated already by pressing the "CC" button on the lower part of the video).
All you need to do is to please go to the following link and translate. Thank you!:
http://www.youtube.com/timedte....xt_video?v=mEyvb1YRC

If you would like to invest in a drawing, painting or sculpture by Leonardo Pereznieto, or to hire him for workshops or lectures, please write to: info@artistleonardo.com (Business only, not for personal messages.)

List of materials:

Sculpting oil based clay, brown
Paint spatula
Modelling tool, fine and medium
Hard (but flexible) iron or copper wire
A wooden board

If you would like to see photos and brands of my tools, please go to my blog about materials with the following link:

http://fineart-tips.blogspot.mx/?view=sidebar

You may also follow me on:

My Twitter: https://twitter.com/#!/ArtistLeonardo

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My Instagram: http://instagram.com/artistleonardo

My LinkedIn: http://www.linkedin.com/profile/view?id=89957576&trk=tab_pro

My Vine: https://vine.co/v/hKnn3rbwJmT

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My VK: http://vk.com/leonardopereznieto

My website Leonardo Pereznieto: http://www.leonardopereznieto.com/leo/Intro.html

I wish you great creations!

Audio file(s) provided by http://www.audiomicro.com

This tutorial shows how to sculpt an eagle in clay - sculpture tutorial

Visit me on FB: https://www.facebook.com/LeonardoPereznieto
Visit my website: http://www.artistleonardo.com/
Visit: http://www.fineartebooks.com/ for free drawing tutorials.

If you would like to invest in a drawing, painting or sculpture by Leonardo Pereznieto, or to hire him for workshops or lectures, please write to: info@leopereznieto.com (Business only, not for personal messages.)

List of materials:

White charcoal Bianco - Primo
Kneaded eraser - Prismacolor
Strathmore drawing paper, black

If you would like to see photos and brands of my tools, please go to my blog about materials with the following link:

http://www.fineartebooks.com/howtodraw_drawingschool/My_Blog/Entries/2012/8/1_My_materials.html

You may also follow me on:

My Blog: http://www.fineartebooks.com/howtodraw_drawingschool/My_Blog/My_Blog.html

Twitter: https://twitter.com/#!/ArtistLeonardo

LinkedIn: http://www.linkedin.com/profile/view?id=89957576&trk=tab_pro

Google+: https://plus.google.com/u/0/10....0373866809472929876/

VK: http://vk.com/leonardopereznieto

Leonardo Pereznieto: http://www.leonardopereznieto.com/leo/Intro.html

Audio file(s) provided by http://www.audiomicro.com

This tutorial shows how to draw a cat with white charcoal on black paper. It is a time lapse video.

Visit me on FB: https://www.facebook.com/LeonardoPereznieto
Follow Fine Art Tips on Google+: http://goo.gl/TqsmiJ
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Do you want to help me translating it into your language?
(Note: First check if it hasn´t been translated already by pressing the "CC" button on the lower part of the video).
All you need to do is to please translate the file at the link below and send it to me:
https://drive.google.com/file/....d/0B0UOw8r7hWG2ZVlUZ

Visit: http://www.fineartebooks.com/ for free drawing tutorials.

If you would like to invest in a drawing, painting or sculpture by Leonardo Pereznieto, or to hire him for workshops or lectures, please write to: info@leopereznieto.com (Business only, not for personal messages.)

List of materials:


Round brushes n. 2 and n.10
Blue and red Chinese ink
Green watercolour (I didn't have green Chinese ink, so used this).
Fabriano white watercolor paper, fine grain
Yellow cardboard paper
dropper

If you would like to see photos and brands of my tools, please go to my blog about materials with the following link:

http://www.fineartebooks.com/howtodraw_drawingschool/My_Blog/Entries/2012/8/1_My_materials.html

You may also follow me on:

My Blog: http://www.fineartebooks.com/howtodraw_drawingschool/My_Blog/My_Blog.html

My Twitter: https://twitter.com/#!/ArtistLeonardo

Fine Art Tips on Google+: http://goo.gl/TqsmiJ

My Google+ page as an artist (with my sculptures, paintings, etc): http://goo.gl/n7p96D

My Instagram: http://instagram.com/artistleonardo

My LinkedIn: http://www.linkedin.com/profile/view?id=89957576&trk=tab_pro

My Vine: https://vine.co/v/hKnn3rbwJmT

My Pinterest: http://pinterest.com/ArtistLeonardo/

My VK: http://vk.com/leonardopereznieto

My website Leonardo Pereznieto: http://www.leonardopereznieto.com/leo/Intro.html

I wish you great creations!

Audio file(s) provided by http://www.jewelbeat.com

This tutorial shows How to Paint With Ink - Amazing Drawings "Magically" Appearing
Wie man mit Tinte malt
마술처럼" 나타나는 잉크화 그리기

This video shows how to draw the head in any angle, based on the Andrew Loomis method.
Get my drawing book: http://amzn.to/1K7L8Ed
Follow my Instagram: https://www.instagram.com/artistleonardo/
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Do you want to help me translating it into your language?
(Note: First check if it hasn´t been translated already by pressing the "CC" button on the lower part of the video).
To translate the title of the video and the subtitles, all you need to do is to please go to the following link and translate (you don't necessarily need to do the whole thing, you can do a section and other people in the community can finish it). Thank you!:
http://www.youtube.com/timedtext_video?v=txotyFfwvqk&ref=share

If you would like to invest in a drawing, painting or sculpture by Leonardo Pereznieto, or to hire him for workshops or lectures, please write to: info@leopereznieto.com (Business only, not for personal messages.)

List of materials:

- Book: Drawing the Head and Hands, by Andrew Loomis - https://amzn.to/2PXqYdC

(This is a companion great book for figure drawing, which I didn't use for this tutorial, but I do recommend it: Figure Drawing for all its Worth, by Andrew Loomis - https://amzn.to/2qIcXlO )

- Mechanical pencil: Tutto3, with 0.3mm 2H lead, 0.5 HB and 0.7 mm 2B lead - http://oartinternational.com/tutto3/

- Kneaded eraser Prismacolor - See it here: http://amzn.to/2cvi6G7

- Copy paper, white 8 1/2 x 11 - https://amzn.to/2RTFNLP

- iPad Pro 12.9 inches (with Procreate software for drawing) - https://amzn.to/2z818Kx

- Apple Pencil - https://amzn.to/2T37V0a


- See my materials at my new "Amazon Influencer" page:
https://www.amazon.com/shop/fineart-tips

Recording Equipment:

Video camera: Panasonic HC-V380K - http://amzn.to/2xJwVmb

“L” shaped camera tripod - http://amzn.to/2xKUcnX

Mic: Blue Jeti - http://amzn.to/2gnwxCp
Pop filter (Mic screen) - http://amzn.to/2ysgn0T
Mic Foam Windacreen - http://amzn.to/2zeiYc8

- Lighting: Studio soft boxes: http://amzn.to/2xKSxhW

Laptop: Apple MacBookPro 13”. Mine is an older version of this beauty: http://amzn.to/2xKzHHL (note, the software I use for editing is Final Cut.)

Some of the above links are affiliate links.

If you would like to see photos and brands of my tools, please go to my blog about materials with the following link:

http://fineart-tips.blogspot.m....x/2015/07/my-drawing


Download Fine Art-Tips mobile app:

On the Apple Store:

For iPhone/iPad free: https://itunes.apple.com/us/ap....p/fine-art-tips-draw

For iPhone/iPad, Premium: https://itunes.apple.com/us/ap....p/fine-art-tips-prem

On Google Play:

For Android free: https://play.google.com/store/apps/details?id=allmax.fine.art.tips.free2&hl=en

For Android, Premium: https://play.google.com/store/apps/details?id=allmax.fine.art.tips2&hl=en

You may also follow me on:

My Blog: http://fineart-tips.blogspot.mx/

My Twitter: https://twitter.com/#!/ArtistLeonardo

Fine Art Tips on Google+: http://goo.gl/TqsmiJ

My Instagram: http://instagram.com/artistleonardo

My LinkedIn: http://www.linkedin.com/profile/view?id=89957576&trk=tab_pro

My Pinterest: http://pinterest.com/ArtistLeonardo/

My VK: http://vk.com/leonardopereznieto

My website: http://www.artistleonardo.com/

I wish you great creations!

Audio file(s) provided by http://www.audiomicro.com

This tutorial shows How to Draw the Head from Any Angle - Loomis Method

In this painting demo I show how I paint hands with oils.

REAL-TIME PAINTING VIDEOS, TUTORIALS and other helpful materials ▶ https://www.patreon.com/dariacallie

Reference photos:
https://www.dropbox.com/s/zqzt....aemnle8mmyd/Hand1.jp
https://www.dropbox.com/s/tecl....xhgfqiabmw8/Hand2.jp

Timestamps:
0:34 - Painting study 1
3:24 - Finished study 1
3:33 - Painting study 2
8:05 - Finished study 2


▷ For prints and original paintings please visit https://dariacallie.com/store/

CONNECT WITH ME:
Instagram: https://www.instagram.com/dariacallie/
Facebook: https://www.facebook.com/DariaCallieArt/
Website: https://www.dariacallie.com/


Materials used:

• Oil paints - Nevskaya palitra
Colors: Burnt umber, Cadmium Yellow, Ultramarine Blue, Cadmium Red and Titanium White.
(I have a color-mixing video where I explain how I premix my palette - https://youtu.be/kKT1gXBC_L4 )
In addition I have a couple of colors that I use sometimes: Ivory Black, Celestial Blue and Cobalt Violet Deep.
• Acrylic primer
• Paper 30 x 30 cm (12 x 12 inches) 280gsm
• Paint thinner (odorless mineral spirits)
• Medium (stand linseed oil)
• Brushes - Detail brushes & Filbert synthetic brushes of different sizes
• Glass palettes (homemade)
• Palette knife (from a local art-store)
• Paper towels (or tissues that I use to wipe the brushes)


Music: Paperchaser “Walk 'til Morning”
https://soundcloud.com/paperchaser-music

Learn more about ExpressVPN: https://www.expressvpn.com/eons

All of today’s big cat species evolved less than 11 million years ago and yet their evolutionary history remains an almost total mystery. But scientists have recently discovered a major clue about the origins of the big cats, one that could provide a whole new starting place for solving this puzzle.

Thanks to Ceri Thomas for the excellent Panthera blytheae and Panthera atrox! Check out more of Ceri's paleoart at http://alphynix.tumblr.com and http://nixillustration.com

Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

THANK YOU to our amazing Cenozoic Patreon patron, Patrick Seifert!!

And to the following Patreon patrons for helping make Eons possible:

Katie Fichtner, Anthony Callaghan, Stefan Weber, Ilya Murashov, Charles Kahle, Robert Amling, Po Foon Kwong, Larry Wilson, Merri Snaidman, Renzo Caimi Ordenes, John Vanek, Neil H. Gray, Esmeralda Rupp-Spangle, Gregory Donovan, الخليفي سلطان, Gabriel Cortez, Marcus Lejon, Robert Arévalo, Robert Hill, Todd Dittman, Betsy Radley, PS, Philip Slingerland, Jose Garcia, Eric Vonk, Tony Wamsley, Henrik Peteri, Jonathan Wright, Jon Monteiro, James Bording, Brad Nicholls, Miles Chaston, Michael McClellan, Jeff Graham, Maria Humphrey, Nathan Paskett, Connor Jensen, Daisuke Goto, Hubert Rady, Gregory Kintz, Tyson Cleary, Chandler Bass, Maly Lor, Joao Ascensao, Tsee Lee, Sarah Fritts, Jacob Gerke, Alex Yan

If you'd like to support the channel, head over to http://patreon.com/eons and pledge for some cool rewards!

Want to follow Eons elsewhere on the internet?
Facebook - https://www.facebook.com/eonsshow
Twitter - https://twitter.com/eonsshow
Instagram - https://www.instagram.com/eonsshow/

References:
Tseng, Z. J. et al. (2014). Himalayan fossils of the oldest known pantherine establish ancient origin of big cats. Proceedings of the Royal Society B 281: 20132686.
Johnson, W. et al. (2006). The Late Miocene radiation of modern Felidae: a genetic assessment. Science 311: 73-77.
Davis, B. et al. (2010). Supermatrix and species tree methods resolve phylogenetic relationships within the big cats, Panthera (Carnivora: Felidae). Molecular Phylogenetics and Evolution 56: 64-76.
Turner, A. and Antón, M. (1997). The big cats and their fossil relatives. New York: Columbia University Press.
Werderlin, L. and Lewis, M.E. (2005). Plio-Pleistocene Carnivora of eastern Africa: species richness and turnover patterns. Zoological Journal of the Linnean Society 144: 121–144.
Zhou Y. et al. (2017). Comprehensive species set revealing the phylogeny and biogeography of Feliformia (Mammalia, Carnivora) based on mitochondrial DNA. PLoS ONE 12(3): e0174902.

Try CuriosityStream today: http://curiositystream.com/eons

Check out SciShow's video on Lake Agassiz: https://youtu.be/qMVhR26NRsk

Strange geologic landmarks in the Pacific Northwest are the lingering remains of a mystery that took nearly half a century to solve. These features turned out to be a result one of the most powerful and bizarre episodes in geologic history: this region experienced dozens of major, devastating floods over the course of more than 7,000 years.

Thanks to Franz Anthony and Studio 252mya for the flood and lake illustrations. You can find more of Franz's work here: https://252mya.com/gallery/franz-anthony

Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

Super special thanks to the following Patreon patrons for helping make Eons possible:

Katie Fichtner, Anthony Callaghan, Larry Wilson, Merri Snaidman, Renzo Caimi Ordenes, John Vanek, Neil H. Gray, Marilyn Wolmart, Esmeralda Rupp-Spangle, Gregory Donovan, Ehit Dinesh Agarwal, سلطان الخليفي, Gabriel Cortez, Marcus Lejon, Robert Arévalo, Robert Hill, Kelby Reid, Todd Dittman, Betsy Radley, PS, Colin Sylvester, Philip Slingerland, Jose Garcia, Eric Vonk, Tony Wamsley, Henrik Peteri, Jonathan Wright, Jon Monteiro, James Bording, Brad Nicholls, Miles Chaston, Michael McClellan, Jeff Graham, Maria Humphrey, Nathan Paskett, Connor Jensen, Daisuke Goto, Hubert Rady, Yuntao Zhou, Gregory Kintz, Tyson Cleary, Chandler Bass, Maly Lor, Joao Ascensao, Tsee Lee, Sarah Fritts, Ron Harvey Jr, Jacob Gerke, Alex Yan

If you'd like to support the channel, head over to http://patreon.com/eons and pledge for some cool rewards!

Want to follow Eons elsewhere on the internet?
Facebook - https://www.facebook.com/eonsshow
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References: https://bit.ly/2XqRiOd

Viewers like you help make PBS (Thank you

Check out Sound Field: https://www.youtube.com/channe....l/UCvMLMyKPomE6kTTL9

Back in the late Miocene epoch, there was an island--or maybe a group of islands-- in the Mediterranean Sea that was populated with fantastic giant beasts. It’s a lesson in the very strange, but very real, powers of natural selection.

Thank you to these paleoartists for allowing us to use their wonderful illustrations:
Franz Anthony: https://252mya.com/gallery/franz-anthony
Stanton Fink: https://www.deviantart.com/avancna
Julio Lacerda: https://252mya.com/gallery/julio-lacerda
Nobu Tamura: https://spinops.blogspot.com/
Ceri Thomas: http://alphynix.tumblr.com/

Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

Super special thanks to the following Patreon patrons for helping make Eons possible:

Katie Fichtner, Anthony Callaghan, XULIN GE, Po Foon Kwong, Larry Wilson, Merri Snaidman, Renzo Caimi, Ordenes, John Vanek, Neil H. Gray, Marilyn Wolmart, Esmeralda Rupp-Spangle, Gregory Donovan, Ehit Dinesh Agarwal, الخليفي سلطان, Gabriel Cortez, Marcus Lejon, Robert Arévalo, Robert Hill, Kelby Reid, Todd Dittman, Betsy Radley, PS, Philip Slingerland, Jose Garcia, Eric Vonk, Tony Wamsley, Henrik Peteri, Jonathan Wright, Jon Monteiro, James Bording, Brad Nicholls, Miles Chaston, Michael McClellan, Jeff Graham, Maria Humphrey, Nathan Paskett, Connor Jensen, Daisuke Goto, Hubert Rady, Gregory Kintz, Tyson Cleary, Chandler Bass, Maly Lor, Joao Ascensao, Tsee Lee, Sarah Fritts, Ron Harvey Jr, Jacob Gerke, Alex Yan

If you'd like to support the channel, head over to http://patreon.com/eons and pledge for some cool rewards!

Want to follow Eons elsewhere on the internet?
Facebook - https://www.facebook.com/eonsshow
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Instagram - https://www.instagram.com/eonsshow/

References: https://bit.ly/2VCS4WF

The California condor is the biggest flying bird in North America, a title that it has held since the Late Pleistocene Epoch. It's just one example of an organism that we share the planet with today that seems lost in time, out of place in our world.

Thanks as always to Studio 252mya for their wonderful paleoart. You can check out more of their work here: https://252mya.com

Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

Super special thanks to the following Patreon patrons for helping make Eons possible:

Katie Fichtner, Anthony Callaghan, XULIN GE, Po Foon Kwong, Larry Wilson, Merri Snaidman, Renzo Caimi, Ordenes, John Vanek, Neil H. Gray, Marilyn Wolmart, Esmeralda Rupp-Spangle, Gregory Donovan, Ehit Dinesh Agarwal, الخليفي سلطان, Gabriel Cortez, Marcus Lejon, Robert Arévalo, Robert Hill, Kelby Reid, Todd Dittman, Betsy Radley, PS, Philip Slingerland, Jose Garcia, Eric Vonk, Tony Wamsley, Henrik Peteri, Jonathan Wright, Jon Monteiro, James Bording, Brad Nicholls, Miles Chaston, Michael McClellan, Jeff Graham, Maria Humphrey, Nathan Paskett, Connor Jensen, Daisuke Goto, Hubert Rady, Gregory Kintz, Tyson Cleary, Chandler Bass, Maly Lor, Joao Ascensao, Tsee Lee, Sarah Fritts, Ron Harvey Jr, Jacob Gerke, Alex Yan

If you'd like to support the channel, head over to http://patreon.com/eons and pledge for some cool rewards!

Want to follow Eons elsewhere on the internet?
Facebook - https://www.facebook.com/eonsshow
Twitter - https://twitter.com/eonsshow
Instagram - https://www.instagram.com/eonsshow/

References: https://bit.ly/2HdL2V7

In 1993, scientists cracked open a piece of amber, took out the body of an ancient weevil, and sampled its DNA. Or, at least, so we thought. It took another few decades of research, and a lot of take-backs, before scientists could figure out how we could truly unlock the genetic secrets of the past.

Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

Super special thanks to the following Patreon patrons for helping make Eons possible:

Katie Fichtner, Aldo Espinosa Zúñiga, Anthony Callaghan, الخليفي سلطان, Gabriel Cortez, Marcus Lejon, Anel Salas, Robert Arévalo, Robert Hill, Kelby Reid, Todd Dittman, Betsy Radley, Svetlana Pylaeva, Colin Sylvester, Philip Slingerland, John Vanek, Jose Garcia, Noah offitzer, Eric Vonk, Tony Wamsley, Henrik Peteri, Jonathan Wright, Jon Monteiro, James Bording, Brad Nicholls, Miles Chaston, Michael McClellan, Jeff Graham, Maria Humphrey, Nathan Paskett, Connor Jensen, Sapjes, Daisuke Goto, Hubert Rady, Yuntao Zhou, Gregory Kintz, Tyson Cleary, Chandler Bass, Maly Lor, Joao Ascensao. Tsee Lee, Sarah Fritts, Ruben Winter, Ron Harvey Jr, Joshua Mitchell, Johnny Li, Jacob Gerke, Alex Yan

If you'd like to support the channel, head over to http://patreon.com/eons and pledge for some cool rewards!

Want to follow Eons elsewhere on the internet?
Facebook - https://www.facebook.com/eonsshow
Twitter - https://twitter.com/eonsshow
Instagram - https://www.instagram.com/eonsshow/

References:
https://journals.plos.org/plos....one/article?id=10.13
https://www.ncbi.nlm.nih.gov/pubmed/28486705
https://onlinelibrary.wiley.co....m/doi/abs/10.1111/17
https://www.nature.com/articles/nature13408
https://www.nature.com/articles/nature10574
http://www.bioone.org/doi/abs/....10.1603/0013-8746%28
https://www.ncbi.nlm.nih.gov/pubmed/26989198
https://www.jstage.jst.go.jp/a....rticle/pjab1977/65/1
http://rspb.royalsocietypublis....hing.org/content/264
https://www.tandfonline.com/do....i/abs/10.1080/205489
https://blogs.scientificameric....an.com/guest-blog/ju
https://www.ncbi.nlm.nih.gov/pubmed/1684053
https://www.ncbi.nlm.nih.gov/pubmed/14711425
https://www.nature.com/articles/362709a0
https://pubs.geoscienceworld.o....rg/gsa/geology/artic
https://www.ncbi.nlm.nih.gov/pubmed/23055061
https://www.nature.com/articles/363536a0
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC26949

Insects were the first animals to ever develop the ability to fly, and, arguably, they did it the best. But this development was so unusual that scientists are still/working on, and arguing about, how and when insect wings first came about.

Special thanks to Franz Anthony for the beautiful insect reconstructions. You can see more of Franz's tremendous work at http://252mya.com

Phylogenomics resolves the timing and pattern of insect evolution:
http://science.sciencemag.org/content/346/6210/763

Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

Super special thanks to the following Patreon patrons for helping make Eons possible:
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References:
https://www.cell.com/current-b....iology/pdf/S0960-982
https://www.nature.com/articles/nature12629
http://science.sciencemag.org/content/346/6210/763
http://science.sciencemag.org/....content/349/6247/487
https://www.nytimes.com/2018/0....3/26/science/insect-
https://www.sciencedirect.com/....science/article/pii/
https://phys.org/news/2012-08-....humble-bug-gap-fossi
https://www.ncbi.nlm.nih.gov/pubmed/23426326/
https://livingwithinsects.word....press.com/2014/09/04
https://www.cell.com/current-b....iology/pdf/S0960-982
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC54529
https://www.abdn.ac.uk/rhynie/collembolan.htm
https://www.nature.com/scitabl....e/topicpage/the-mole

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Hank introduces us to the "simplest" of the animals, complexity-wise: beginning with sponges (whose very inclusion in the list as "animals" has been called into question because they are so simple) and finishing with the most complex molluscs, octopuses and squid. We differentiate them by the number of tissue layers they have, and by the complexity of those layers.

Crash Course Biology is now available on DVD! http://dft.ba/-8css

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Table of Contents:
1) Porifera 1:33
2) Cnidaria 2:36
a) Diploblasts 2:48
3) Platyhelminthes 3:33
a) Triploblasts 3:56
b) Coelom 4:36
4) Biolography 5:36
5) Nematoda 7:26
6) Rotifera 7:57
7) Molusca 8:33

References for this episode can be found in the Google document here: http://dft.ba/-2V_c

crash course, biology, anatomy, animal, simple, complex, tissue complexity, tissue, sponge, development, porifera, multicellular, eukaryotic, eukaryote, species, cnidaria, jellies, anemone, hydra, coral, germ layer, body cavity, endoderm, ecotoderm, dipoloblast, stinging cell, cnidocyst, platyhelminthes, fluke, triploblast, coelom, acoelomate, biolography, cambrian explosion, adaptation, fossil, evolution, diversity, nematoda, pseudocoelomate, hookworm, rotifera, mollusca, chitin, snail, bivalve, octopus, squid, visceral mass, foot, mantle, radula, gastropod, cephalopod Support CrashCourse on Subbable: http://subbable.com/crashcourse

In which John covers the long, long history of ancient Egypt, including the Old, Middle and New Kingdoms, and even a couple of intermediate periods. Learn about mummies, pharaohs, pyramids and the Nile with John Green.

Crash Course World History is now available on DVD!
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Resources:

Mummies!: https://goo.gl/BvAdmj

Pyramids!: http://goo.gl/aCov2j


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Want more videos about psychology every Monday and Thursday? Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych!

In this episode of Crash Course Psychology, we get to meet the brain. Hank talks us through the Central Nervous System, the ancestral structures of the brain, the limbic system, and new structures of the brain. Plus, what does Phineas Gage have to do with all of this?
--
Table of Contents:
Basics of the CNS 2:15
Basics of the Brain 5:03
Ancestral Structures of the Brain 5:37
Limbic System 7:31
New Structures of the Brain 8:32
--
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In which John Green teaches you about the poetry of Sylvia Plath. When a lot of people think about Sylvia Plath, they think about her struggles with mental illness and her eventual suicide. Her actual work can get lost in the shuffle a bit, so this video really tries to focus on the poetry. You'll learn about Sylvia Plath's role as a feminist poet, and you'll also learn about her extraordinary ability to recreate the experiences of real life in beautiful and relatable way.

Hear John read all of Sylvia Plath's "Lady Lazarus" here:
https://www.youtube.com/watch?v=auP1bHAglU0&feature=youtu.be

Hank tells us about the team of deadly ninja assassins that is tasked with protecting our bodies from all the bad guys that want to kill us - also known as our immune system.

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Table of Contents
1) Innate Immune System 1:45
a) Mucous Membranes 2:54
b) Inflammatory Response 3:44
c) Leukocytes 4:45

2) Open Letter 6:33
a) Natural Killer Cells 6:56
b) Dendritic Cells 7:57

3) Acquired Immune System 8:36
a) Antibodies 9:08
b) Lymphocytes 9:48
c) Cell-Mediated Response 10:17
d) Humoral Response 13:00

References
Campbell Biology, 9th ed.
http://faculty.stcc.edu/AandP/....AP/AP2pages/Units18t
http://highered.mcgraw-hill.co....m/sites/0072495855/s

This video uses the following sounds from Freesound.org:
"Pigs-01.flac" by Erdie
"straw slurp.wav" by dparke4
"Disgusting Slop.wav" by Ighuaran
"Sonar Ping.wav" by digifishmusic
"Swishes.wav" by Pogotron
"swing.mp3" by morgantj

crash course, crashcourse, biology, immune system, anatomy, physiology, human, health, microscopic, pus, pathogen, bacteria, body, organism, virus, immunity, innate, acquired, animal, vertebrate, germ, skin, mucous membrane, digestive tract, mucus, inflammatory response, mast cells, histamine, allergic, allergy, infection, phagocyte, macrophage, natural killer cell, lymphocytes, white blood cells, antigen, t cell, humoral response Support CrashCourse on Subbable: http://subbable.com/crashcourse