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Check out Overview on @pbsterra ►► https://youtu.be/WWrb1iyCLlI
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Uploaded 20-10-21
How can sand, blown by the wind, form such intricate and beautiful patterns as ripples and dunes? The answer is a surprising secret of self-organization. In this video, we travel to Great Sand Dunes National Park in Colorado to climb the largest sand dunes in North America and bring you the science of how wind and sand combine to create ordered landforms out of chaos. The science must flow.
References: https://sites.google.com/view/sanddunesreferences/home
Thank you to Dr. Mathieu Lapôtre (Stanford) and Dr. Orencio Duran Vinent (Texas A and M) for helpful discussions while researching this epsiode.
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Special thanks to our Brain Trust Patrons:
Ronnie Adams
Barbora Bei
Ken Board
T Clinger
Attila Pix
Burt Humburg
DeliciousKashmiri
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Roy Lasris
dani bowman
David Johnston
Salih Arslan
Baerbel Winkler
Robert Young
Amy Sowada
Eric Meer
Dustin
Marcus Tuepker
Karen Haskell
AlecZero
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate
Uploaded 29-08-17
Nature is truly the ultimate recycler…
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Waste not, want not… right? Poop, in all of its various forms throughout nature, shapes the world in ways you might not imagine. One creature’s waste is another’s fuel, and all over nature these leftovers help new life spring up. Here’s how whales, birds, worms, bats, and more help the world breathe clean, thanks to their poop.
Thanks to the following for their expert info:
Dr. Richard Kirby (@PlanktonPundit)
David Moscato (@DMos150)
Dr. Cullen Geiselman
Dr. Winifred Frick (@frickwinifred)
Watch our old video: The Ghosts of Evolution https://www.youtube.com/watch?v=ZWW5OuxlKec
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READ MORE:
Ghosts of Evolution by Connie Barlow http://amzn.to/2wfQFLX
How whale poop helps feed the ocean: https://theconversation.com/bottoms-up-how-whale-poop-helps-feed-the-ocean-27913
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It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Director: Joe Nicolosi
Writer: Sarah Keartes
Editor/animator: David Schulte
Producer: Stephanie Noone and Amanda Fox
Produced by PBS Digital Studios
Music via APM
Stock images from Shutterstock http://www.shutterstock.com
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Learn more about opportunities from KiwiCo here: https://www.kiwico.com/okay
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Uploaded 21-11-18
Nothing is guaranteed in life except death, taxes, and entropy. What do other life forms have to teach us about staying alive as we get old, and will we ever conquer death?
REFERENCES:
Arias, E. et al. (2013). United States life tables eliminating certain causes of death, 1999–2001. National Vital Statistics Reports 61(9)
De Cecco, M. et al. (2013). Transposable elements become active and mobile in the genomes of aging mammalian somatic tissues. Aging 5(12): 867–883. DOI: 10.18632/aging.100621
Hayflick, L. (2016). Unlike aging, longevity is sexually determined. In Handbook of theories of aging, 3rd ed. (pp. 31-52). New York, NY, Springer.
Hayflick, L. (UCSF School of Medicine). Interview.
Klapper, W. et al. (1998). Longevity of lobsters is linked to ubiquitous telomerase expression. FEBS Letters 439: 143-146
Martinez, D.E. (1998). Mortality patterns suggest lack of senescence in hydra. Experimental Gerontology 33(3): 217–225
Reilly, M.T. et al. (2013). The role of transposable elements in health and diseases of
the central nervous system. The Journal of Neuroscience 33(45): 17577–17586
Roth, A.W. and Polotsky, A.J. (2012). Can we live longer by eating less? A review of caloric restriction and longevity. Maturitas 71: 315–319
Sturm, A. et al. (2015). The mechanism of ageing: primary role of transposable elements in genome disintegration. Cell. Mol. Life Sci. 72:1839–1847
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Your now is not your forever (unless you’re a tuatara)
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Uploaded 07-02-18
Special thanks to John Green! And to Amber Faasen and the Dallas Zoo herpetarium team!
During the 2017 Project For Awesome livestream, I promised I’d make a tuatara video if we hit our fundraising goal, and I’m a man of my word! Little did I know I’d get to meet a tuatara and learn things about a 200 million year old branch of life that would blow my mind. Get ready to meet the chillest reptile, weird living fossil, and star of Turtles All The Way Down… the tuatara.
3D tuatara skull animation courtesy of Digimorph: http://www.digimorph.org/
READ MORE:
“Turtles All The Way Down” by John Green: http://amzn.to/2GU2c6J
“Horseshoe Crabs and Velvet Worms: The Story of the Animals and Plants That Time Has Left Behind” by Richard Fortey http://amzn.to/2EpcfT2
Hay, J. M., Subramanian, S., Millar, C. D., Mohandesan, E., and Lambert, D. M. (2008). Rapid molecular evolution in a living fossil. Trends in Genetics, 24(3), 106-109.
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It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Director: Joe Nicolosi
Writer: Joe Hanson, Ph.D.
Creative Director: David Schulte
Editor/animator: Derek Borsheim
Producer: Stephanie Noone and Amanda Fox
Produced by PBS Digital Studios
Music via APM
Stock images from Shutterstock http://www.shutterstock.com
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