Mating frenzies, sperm hoards, and brood raids: The life of a fire ant queen - Walter R. Tschinkel

Explore the history and technology of Viking longships, which helped the Scandinavians conquer trade routes and new territories.Uploaded 21-01-20--As the Roman Empire flourished, Scandinavians had small settlements and no central government. Yet by the 11th century, they had spread far from Scandinavia, gaining control of trade routes throughout Europe, conquering kingdoms as far as Africa, and building outposts in North America. What was the secret to their success? Jan Bill dives into the history of the formidable Viking longship.Lesson by Jan Bill, directed by TOTEM Studio.Animator's website: https://www.totemstudio.tvSign up for our newsletter: http://bit.ly/TEDEdNewsletterSupport us on Patreon: http://bit.ly/TEDEdPatreonFollow us on Facebook: http://bit.ly/TEDEdFacebookFind us on Twitter: http://bit.ly/TEDEdTwitterPeep us on Instagram: http://bit.ly/TEDEdInstagramView full lesson: https://ed.ted.com/lessons/what-was-so-special-about-viking-ships-jan-billThank you so much to our patrons for your support! Without you this video would not be possible! Marc Bilodeau, Peng, Tzu-Hsiang, paul g mohney, Maya Toll, Sebastian Regez, Bruno Hannud, Andreas Voltios, Shubham Arora, Ugur Doga Sezgin, Akinola Emmanuel, Kyanta Yap, Ricardo Rendon Cepeda, Ana Maria, Benjamin and Shannon Pinder, Ernest Chow, Bela Namyslik, Alan Froese, Anika Westburg, Nick Cozby, Shawar Khan, Michael Braun-Boghos, Rohan Gupta, Elizabeth Cruz, Yujing Jiang, Sarah Lundegaard, Vladimir Ivanchenko, Georg Gusewski, Rohit Lodha, Erica Zhuang, Aaron Henson, Julio Sabatés Rodríguez, Vivian and Gilbert Lee, Fahad Nasser Chowdhury, ரமணன், John simmons, June Reiling, Khalid AlAli, Mickey Mikeworth, Nathaniel Lupus, Yansong Li, Chung Wah Gnapp, Amber Alexander, Robert Patrick, Pi Guanghui, Barbara Younker, Ai Ejima, Soma Ali, Roman Pinchuk, Raheem and Hector Quintanilla. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

View full lesson: http://ed.ted.com/lessons/why-do-buildings-fall-in-earthquakes-vicki-v-mayUploaded 26-01-15Earthquakes have always been a terrifying phenomenon, and they’ve become more deadly as our cities have grown — with collapsing buildings posing one of the largest risks. But why do buildings collapse in an earthquake? And how can it be prevented? Vicki V. May explains the physics of why it is not the sturdiest buildings, but the smartest, that will remain standing.Lesson by Vicki V. May, animation by Pew36 Animation Studios. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

Explore the creation of national parks and the importance of finding a balance between public use and ecological preservation.Uploaded 06-10-20--In 1903, US President Theodore Roosevelt took a camping trip in California’s Yosemite Valley with conservationist John Muir. Roosevelt famously loved the outdoors, but Muir had invited him for more than just camping: Yosemite was in danger. It was part of a struggle to set aside land for both preservation and public use. Elyse Cox details the delicate balancing act of creating a national park.Lesson by Elyse Cox, directed by Boniato Studio.Animator's website: https://www.boniato.studio/Sign up for our newsletter: http://bit.ly/TEDEdNewsletterSupport us on Patreon: http://bit.ly/TEDEdPatreonFollow us on Facebook: http://bit.ly/TEDEdFacebookFind us on Twitter: http://bit.ly/TEDEdTwitterPeep us on Instagram: http://bit.ly/TEDEdInstagramView full lesson: https://ed.ted.com/lessons/why-we-need-national-parks-elyse-coxThank you so much to our patrons for your support! Without you this video would not be possible! Brandy Jones, Shawn Quichocho, Gi Nam Lee, Joy Love Om, Miloš Stevanović, Ghassan Alhazzaa, Yankai Liu, Pavel Zalevskiy, Claudia Mayfield, Stephanie Perozo, Joe Giamartino, Filip Dabrowski, Barbara Smalley, Megan Douglas, Tim Leistikow, Andrés Melo Gámez, Renhe Ji, Ka-Hei Law, Michal Salman, Peter Liu, Mark Morris, Catherine Sverko, Misaki Sato, Tan YH, Ph.D., Rodrigo Carballo, SookKwan Loong, Bev Millar, Merit Gamertsfelder, Lex Azevedo, Noa Shore, Taylor Hunter, Kyle Nguyen, MJ Tan Mingjie, Cristóbal Moenne, Goh Xiang Ting Diana, Kevin Wong, Dawn Jordan, Yanira Santamaria, Prasanth Mathialagan, Savannah Scheelings, Susan Herder, Samuel Doerle, David Rosario, Dominik Kugelmann, Siamak H, Tracey Tobkin, Dwight Tevuk, Anthony Kudolo, Mrinalini and Yanuar Ashari. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

Explore the 6 most common misconceptions about the Middle Ages, and find out what living in medieval times was actually like.--Medieval Europe. Where unbathed, sword-wielding knights ate rotten meat, thought the Earth was flat, defended chastity-belt wearing maidens, and tortured their foes with grisly gadgets. Except… this is more fiction than fact. So, where do all the myths about the Middle Ages come from? And what were they actually like? Stephanie Honchell Smith debunks common misconceptions about the time period.Lesson by Stephanie Honchell Smith, directed by Avi Ofer.Support Our Non-Profit Mission----------------------------------------------Support us on Patreon: http://bit.ly/TEDEdPatreonCheck out our merch: http://bit.ly/TEDEDShop----------------------------------------------Connect With Us----------------------------------------------Sign up for our newsletter: http://bit.ly/TEDEdNewsletterFollow us on Facebook: http://bit.ly/TEDEdFacebookFind us on Twitter: http://bit.ly/TEDEdTwitterPeep us on Instagram: http://bit.ly/TEDEdInstagram----------------------------------------------Keep Learning----------------------------------------------View full lesson: https://ed.ted.com/lessons/6-myths-about-the-middle-ages-that-everyone-believes-stephanie-honchell-smithDig deeper with additional resources: https://ed.ted.com/lessons/6-myths-about-the-middle-ages-that-everyone-believes-stephanie-honchell-smith#digdeeperAnimator's website: https://aviofer.comMusic: http://www.wonderboyaudio.com----------------------------------------------Thank you so much to our patrons for your support! Without you this video would not be possible! Katie McDowell, Allen, Mahina Knuckles, Charmaine Hanson, Thawsitt, Jezabel, Abdullah Abdulaziz, Xiao Yu, Melissa Suarez, Brian A. Dunn, Francisco Amaya, Daisuke Goto, Matt Switzler, Peng, Tzu-Hsiang, Bethany Connor, Jeremy Shimanek, Mark Byers, Avinash Amarnath, Xuebicoco, Rayo, Po Foon Kwong, Boffin, Jesse Jurman, Scott Markley, Elija Peterson, Ovidiu Mrd, paul g mohney, Steven Razey, Nathan Giusti, Helen Lee, Anthony Benedict, Karthik Balsubramanian, Annastasshia Ames, Amy Lopez, Vinh-Thuy Nguyen, Liz Candee, Ugur Doga Sezgin, Karmi Nguyen, John C. Vesey, Yelena Baykova, Nick Johnson, Carlos H. Costa, Jennifer Kurkoski, Ryan B Harvey, Akinola Emmanuel, Jose Arcadio Valdes Franco, Sebastiaan Vleugels, Karl Laius, JY Kang and Abhishek Goel. Learn more about your ad choices. Visit megaphone.fm/adchoices

View full lesson: http://ed.ted.com/lessons/got-seeds-just-add-bleach-acid-and-sandpaper-mary-kogaUploaded 16-07-13For a seed to start growing, its embryo must emerge from its hard coat. In nature the embryo is aided by frost and animal digestion -- but humans can help too. Nicking, filing, and soaking the seed in hot water or acid are all forms of scarification, or ways to speed up germination by breaking down the shell. Mary Koga offers some tips to spur your sprouts (and don't forget the bleach!). Lesson by Mary Koga, animation by Provincia Studio. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices