Visit my FB Gallery: 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, please write to: info@leonardopereznieto.com

List of materials:

Watercolor set Schminke
Lead holder with 2B lead
Fabriano watercolor paper, fine gran
Natural brushes of various sizes

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

This tutorial shows how to paint a waterscape in watercolor.

My drawing book: http://amzn.to/1K7L8Ed
My Instagram: https://www.instagram.com/artistleonardo/
Fine Art-Tips' Instagram: https://www.instagram.com/fine.art.tips/
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).
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=s72RpWJjfgg&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:

- Pilot Drawing Pen - See it here: http://amzn.to/2oZzmeu
- Fabriano Ecowhite Drawing Pad 11.7X16.5 Inches - See it here: http://amzn.to/2krS9xp


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 The Best Exercise to Improve Your Drawing Skills

Visit me on FB: https://www.facebook.com/LeonardoPereznieto
Follow Fine Art Tips on Google+: http://goo.gl/TqsmiJ
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/timedte....xt_video?v=GKSm8pKzY

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:

Schmincke watercolor set - See it here: http://amzn.to/2jZ0GXI
Watercolor round brushes: 00, 2, 10, 22
Archess water-colour paper -
A wooden rod

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/h....owtodraw_drawingscho

You may also follow me on:

My Blog: http://www.fineartebooks.com/h....owtodraw_drawingscho

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.audiomicro.com

This tutorial shows How to Paint a Cherry Tree in Watercolor - Painting Trees - Paint a Tree - Sakura

In this painting demo I’ll show how I paint a bunny with oils.

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

▷ 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 Pale, Ultramarine Blue, Cadmium Red and Titanium White, Ivory Black.
• Primed 280gsm paper
• Paint thinner (odorless mineral spirits)
• Medium (stand linseed oil)
• Brushes - Detail brushes & Filbert synthetic brushes of different sizes
• Glass palette (homemade)
• Palette knife (from a local art-store)
• Paper towels (or tissues that I use to wipe the brushes)


Music: “We left the place (post-rock)” by Mindthings
https://soundcloud.com/mindthi....ngs/we-left-the-plac

Oil on silver leaf - 20 x 20 cm (7,9 x 7,9 inches)

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

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


Reference photo: https://www.patreon.com/posts/....oil-on-silver-172479

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 Pale, Ultramarine Blue, Cadmium Red and Titanium White.
In addition I have a couple of colors that I use sometimes: Ivory Black, Celestial Blue and Cobalt Violet Deep.
• Primed 280gsm paper
• Silver leaf
• Paint thinner (odorless mineral spirits)
• Medium (stand linseed oil)
• Brushes - Detail brushes & Filbert synthetic brushes of different sizes
• Glass palette (homemade)
• Palette knife (from a local art-store)
• Paper towels (or tissues that I use to wipe the brushes)


Music by the amazing Liam J Hennessy
https://soundcloud.com/liamjhennessy/beacons

In this painting demo I show how I paint an eye with oils.

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

Reference Photo: https://www.dropbox.com/s/szwx....5vymzudskay/Referenc


▷ 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: http://www.dariacallie.com/


Materials used:

• Oil paints - Gamblin Oil Colors and Nevskaya palitra (russian brand)
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: “re:MEMORY” by A. Taylor
https://soundcloud.com/a-taylor

This is how I clean oil paint brushes!

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

▷ 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/

Music: Oasis - Wonderwall Instrumental
SoundCloud: https://soundcloud.com/suliman815
Music License: https://creativecommons.org/licenses/by/3.0/

Viewers like you help make PBS (Thank you

We all belong to the only group of hominins on the planet today. But we weren’t always alone. 100,000 years ago, Eurasia was home to other hominin species, some of which we know our ancestors met, and spent some quality time with.

Thanks to Julio Lacerda and Fabrizio de Rossi from Studio 252mya for their wonderful hominin illustrations. You can find 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, MissyElliottSmith, The Scintillating Spencer, AA, Zachary Spencer, Stefan Weber, Ilya Murashov, Charles Kahle, Robert Amling, Po Foon Kwong, Larry Wilson, Merri Snaidman, 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, Joao Ascensao, Tsee Lee, Sarah Fritts, Alex Yan

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References: https://docs.google.com/docume....nt/d/1h8iVAIugVPfxOc

Viewers like you help make PBS (Thank you

Check out Two Cents: https://www.youtube.com/channe....l/UCL8w_A8p8P1HWI3k6

Due to an odd quirk of genetics and some unique evolutionary circumstances, two humans who lived at different times in the distant past managed to pass on a very small fraction of their genomes to you. And to me. To all of us.

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

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References:
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC33345
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC32671
https://pdfs.semanticscholar.o....rg/f4ee/6bfac21f39ac
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC58921
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC40321
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC55008
http://haplogroup-a.com/Ancient-Root-AJHG2013.pdf
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC54183
http://ase.tufts.edu/chemistry..../hhmi/documents/Prot
http://pages.ucsd.edu/~dkjorda....n/resources/clarific
https://www.cell.com/action/sh....owPdf?pii=S0960-9822
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC43679
https://www.cell.com/action/sh....owPdf?pii=S0002-9297
https://www.newscientist.com/a....rticle/mg22429904-50
https://www.smithsonianmag.com..../science-nature/no-m
https://www.nature.com/news/ge....netic-adam-and-eve-d
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC55252
https://www.hhmi.org/biointera....ctive/evolution-y-ch
http://www.pnas.org/content/106/38/16018
https://www.nature.com/articles/jhg2012154
https://academic.oup.com/mbe/a....rticle/27/8/1833/988
https://www.nature.com/articles/325031a0
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC26949
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC43815
https://www.ncbi.nlm.nih.gov/pubmed/28086175

Support us on Patreon! http://patreon.com/eons

The best evidence we have suggests that, while Caviomorpha originated in South America, they came from ancestors in Africa, over 40 million years ago. So how did they get there?

This episode was written by Genevieve Perdue.

Thanks to Ceri Thomas for the Josephoartigasia monesi reconstruction. 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

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

Katie Fichtner, Aldo Espinosa Zúñiga, Anthony Callaghan, Esmeralda Rupp-Spangle, Gregory Donovan, Ehit Dinesh Agarwal, الخليفي سلطان, Gabriel Cortez, Marcus Lejon, Anel Salas, Robert Arévalo, Robert Hill, Kelby Reid, Todd Dittman, Betsy Radley, PS, 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, Jacob Gerke, Alex Yan

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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://academic.oup.com/bioli....nnean/article/121/4/
https://link.springer.com/arti....cle/10.1007/s11692-0
https://www.ncbi.nlm.nih.gov/pubmed/21993503
https://www.sciencedirect.com/....science/article/pii/
http://rspb.royalsocietypublis....hing.org/content/275
https://www.researchgate.net/p....ublication/316684055
https://onlinelibrary.wiley.co....m/doi/abs/10.1002/ev
https://www.nature.com/articles/26886
https://journals.plos.org/plos....one/article?id=10.13
https://books.google.com/books..../about/Mammals_of_th
https://scinapse.io/papers/2167227626
https://www.ncbi.nlm.nih.gov/pubmed/21238387
https://onlinelibrary.wiley.co....m/doi/abs/10.1002/jm
http://science.sciencemag.org/content/323/5915/732
https://www.nature.com/scitabl....e/topicpage/the-mole
https://link.springer.com/chap....ter/10.1007/978-1-46
https://www.jstor.org/stable/2999827
https://www.ncbi.nlm.nih.gov/pubmed/10423268
https://onlinelibrary.wiley.co....m/doi/book/10.1002/9
https://www.ncbi.nlm.nih.gov/pubmed/11476632
Lavocat, R. “La syste´matique des rongeurs hystricomorphes et la de´rive des continents.” Comptes Rendus de l'Académie des Sciences Series D 269 (1969).
https://link.springer.com/chap....ter/10.1007/978-1-46
https://onlinelibrary.wiley.co....m/doi/full/10.1111/j
https://www.researchgate.net/p....ublication/256415173
https://www.researchgate.net/p....ublication/263582456
https://www.jstor.org/stable/2401146
Merali, Z., and B.J. Skinner. Visualizing Earth Science (2009). Hoboken: John Wiley & Sons, Inc.
http://rspb.royalsocietypublis....hing.org/content/275
https://academic.oup.com/jmamm....al/article/91/1/11/8
Mones, A., and J. Ojasti. “Hydrochoerus hydrochaeris.” Mammalian Species 264(1986).
https://www.sciencedirect.com/....science/article/pii/
Morrison, M.L., Marcot, B.G., and R.W. Mannan. Wildlife-Habitat Relationships: Concepts and Applications, 3rd ed. (2006). Washington, D.C.: Island Press.
Nowak, R. M. Walker’s mammals of the world, 5th ed. (1991). Baltimore: Johns Hopkins University Press.
http://advances.sciencemag.org..../content/2/8/e160088
https://www.researchgate.net/p....ublication/299560709
https://scinapse.io/papers/184792926
Patton, J. L., Pardiñas, U. F. J., and G. D’Elía. Mammals of South America, Vol. 2, Rodents (2015). Chicago: The University of Chicago Press.
https://www.ncbi.nlm.nih.gov/pubmed/16551580
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC25999
https://www.jstor.org/stable/25654250
Scotese, C.R. “A Continental Drift Flipbook.” The Journal of Geology 112.6 (2004).
Simpson, G.G. 1940. “Mammals and land bridges.” Journal of the Washington Academy of Sciences 30 (1940).
https://www.researchgate.net/p....ublication/282577627

Viewers like you help make PBS (Thank you

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

Fossilized footprints have proved that human ancestors were already striding across the landscape 3.6 million years ago. But who started them on that path? What species pioneered this style of locomotion? Who was the first to walk?

Check out our new sticker! https://store.dftba.com/collec....tions/all/products/e

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, 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, Wilco Verweij, Jon Monteiro, James Bording, Brad Nicholls, Miles Chaston, Michael McClellan, Elysha Nygård, 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, Brandon Burke, 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:
http://humanorigins.si.edu/evi....dence/human-fossils/
http://humanorigins.si.edu/evi....dence/behavior/footp
https://www.smithsonianmag.com..../science-nature/beco
https://www.nature.com/news/20....07/070716/full/news0
Dericquebourg, P., Person, A., Ségalen, L., Pickford, M., Senut, B., & Fagel, N. (2015). Environmental significance of Upper Miocene phosphorites at hominid sites in the Lukeino Formation (Tugen Hills, Kenya). Sedimentary Geology, 327, 43-54.
Thorpe, S. K., McClymont, J. M., & Crompton, R. H. (2014). The arboreal origins of human bipedalism. Antiquity, 88(341), 906-914.
Harcourt-Smith, W. H. (2010). The first hominins and the origins of bipedalism. Evolution: Education and Outreach, 3(3), 333-340.
Brunet, M., Guy, F., Pilbeam, D., Lieberman, D. E., Likius, A., Mackaye, H. T., ... & Vignaud, P. (2005). New material of the earliest hominid from the Upper Miocene of Chad. Nature, 434(7034), 752.
Richmond, B. G., & Jungers, W. L. (2008). Orrorin tugenensis femoral morphology and the evolution of hominin bipedalism. Science, 319(5870), 1662-1665.
Begun, D. R. (2004). The earliest hominins--is less more?. Science, 303(5663), 1478-1480.
Lovejoy, C. O., Latimer, B., Suwa, G., Asfaw, B., & White, T. D. (2009). Combining prehension and propulsion: the foot of Ardipithecus ramidus. Science, 326(5949), 72-72e8.
Lovejoy, C. O., Suwa, G., Spurlock, L., Asfaw, B., & White, T. D. (2009). The pelvis and femur of Ardipithecus ramidus: the emergence of upright walking. Science, 326(5949), 71-71e6.
White, T. D., Suwa, G., & Asfaw, B. (1994). Australopithecus ramidus, a new species of early hominid from Aramis, Ethiopia. Nature, 371(6495), 306.
Leakey, M. G., Feibel, C. S., McDougall, I., & Walker, A. (1995). New four-million-year-old hominid species from Kanapoi and Allia Bay, Kenya. Nature, 376(6541), 565.
White, T. D., WoldeGabriel, G., Asfaw, B., Ambrose, S., Beyene, Y., Bernor, R. L., ... & Hart, W. K. (2006). Asa Issie, Aramis and the origin of Australopithecus. Nature, 440(7086), 883.
Masao, F. T., Ichumbaki, E. B., Cherin, M., Barili, A., Boschian, G., Iurino, D. A., ... & Manzi, G. (2016). New footprints from Laetoli (Tanzania) provide evidence for marked body size variation in early hominins. elife, 5, e19568.
Almécija, S., Tallman, M., Alba, D. M., Pina, M., Moyà-Solà, S., & Jungers, W. L. (2013). The femur of Orrorin tugenensis exhibits morphometric affinities with both Miocene apes and later hominins. Nature Communications, 4, 2888.

http://patreon.com/eons
Viewers like you help make PBS (Thank you

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

Want to follow Eons elsewhere on the internet?
Facebook - https://www.facebook.com/eonsshow
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References:
IMAGE: Horseshoe crab
https://pixnio.com/fauna-anima....ls/crabs-and-lobster
IMAGE: Trilobite https://commons.wikimedia.org/wiki/File:Megalaspides_01.jpg?fastcci_from=204367&c1=204367&c2=3618826&d1=15&d2=0&s=200
IMAGE: Arthropod family Tree
https://evolution.berkeley.edu..../evolibrary/article/
And although horseshoe crabs made it to modern times and trilobites didn’t, they both have ancient beginnings. The oldest known trilobite is ~540 million years old, but the horseshoe crabs weren’t far behind with the earliest example showing up ~445 million years ago. So technically just looking at a horseshoe crab you’re looking back millions of years into the past.
SOURCE: http://www.igme.es/museo/trilo....08/archivos/TRILOBIT (oldest trilobites)
SOURCE: http://onlinelibrary.wiley.com..../doi/10.1111/j.1475- (oldest horseshoe crabs)

IMAGE: bird skull https://etc.usf.edu/clipart/73....400/73460/73460_skul
IMAGE: reptile skull (Px = premaxilla) https://en.wikipedia.org/wiki/....Jugal_bone#/media/Fi

IMAGE: Limusaurus https://commons.wikimedia.org/....wiki/File:Limusaurus
Source: http://b3.ifrm.com/30233/130/0..../p3001488/PIIS096098

IMAGE: Archaeornithura https://commons.wikimedia.org/....wiki/File:Archaeorni
MAGE: Archaeopteryx https://commons.wikimedia.org/....wiki/File:Archaeopte

SOURCE: Paleo Art
https://naturalhistory.si.edu/....exhibits/backyard-di
SOURCE: Digital reconstruction https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC50989

IMAGE: fossilization https://www.nature.com/scienti....ficamerican/journal/
SOURCE: fossilization
http://www.geo.arizona.edu/geo3xx/geo308/FoldersOnServer/2003/1fossil&taph&ichno.htm
SOURCE: Anthropocene
http://environment.harvard.edu..../news/faculty-news/h

This week Craig talks about police searches and seizures. Now, the fourth amendment says that you have the right to be protected against "unreasonable searches and seizures" but what exactly does this mean? Well, it's complicated. The police often need warrants issued with proof of probable cause, but this isn't always the case - such as when you're pulled over for a moving violation. We'll finish up with the limitations of these protections and discuss one group of people in particular that aren't protected equally - students.

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Support is provided by Voqal: http://www.voqal.org

All attributed images are licensed under Creative Commons by Attribution 2.0

https://creativecommons.org/licenses/...

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Gases are everywhere, and this is good news and bad news for chemists. The good news: when they are behaving themselves, it's extremely easy to describe their behavior theoretically, experimentally and mathematically. The bad news is they almost never behave themselves.
In this episode of Crash Course Chemistry, Hank tells how the work of some amazing thinkers combined to produce the Ideal Gas Law, how none of those people were Robert Boyle, and how the ideal gas equation allows you to find out pressure, volume, temperature or number of moles. You'll also get a quick introduction to a few jargon-y phrases to help you sound like you know what you're talking about.

Table of Contents
Ideal Gas Law Equation 0:50
Everyone But Robert Boyle 1:35
Ideal Gas Law to Figure Out Things 6:16
Jargon Fun Time 7:46

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In which John Green teaches you about the American Revolution and the American Revolutionary War, which it turns out were two different things. John goes over the issues and events that precipitated rebellion in Britain's American colonies, and he also explores the ideas that laid the groundwork for the new American democracy. Find out how the tax bill from the Seven Years War fomented an uprising, how the Enlightenment influenced the Founding Fathers, and who were the winners and losers in this conflict.(hint: many of the people living in the Colonies ended up losers) The Revolution purportedly brought freedom and equality to the Thirteen Colonies, but they weren't equally distributed. Also, you'll learn about America's love affair with commemorative ceramics and what happens when rich white guys take the reins from reins white guys, and put together a society of, by, and for rich white guys.

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So, what do Batman and J.R.R. Tolkien have in common? Post Traumatic Stress Disorder. It used to be called "Shellshock" and it can be really really really destructive. In this episode of Crash Course Psychology, Hank lays out the low down on PTSD and how trauma can affect the brain. Plus, a look at how addiction can play into trauma and the different types of treatments used to help those afflicted.

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Table of Contents:

PTSD: Causes and Symptoms 01:57:18
How Trauma Can Affect the Brain 05:12:09
Addiction 07:08:18
Trauma and Addiction 07:41:17
Dual Treatment Model 08:24:07
Post-Traumatic Growth 06:31:00
The Wise Frodo Baggins 00:00

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