Learn about whether there’s such a thing as “single A” batteries; 5 surprising ways volunteering improves your physical health; and how duckbill dinosaurs may have crossed an ocean to reach Africa.

Single-A batteries? by Ashley Hamer (Listener question from Julien and his son Phelix)

• Boolish, M., DeJager, J., O’Beirne, T., Runkles, R. (2002, November 21). A Brief History of the Standardization of Portable Cells and Batteries in the United States. American National Standards Institute Accredited Standards Committee C18 on Portable Cells and Batteries. it.org/all/20120802183313/http://www.swe.com/admin/FILES/ANSI%20Battery%20Standardization%20History.pdf">https://wayback.archive-it.org/all/20120802183313/http://www.swe.com/admin/FILES/ANSI%20Battery%20Standardization%20History.pdf
• A Look at Cell Formats and How to Build a Good Battery – Battery University. (2013). BatteryUniversity.com. https://batteryuniversity.com/learn/article/a_look_at_cell_formats_and_how_to_build_a_good_battery
• Linden, D., Reddy, T.B. (2002). Handbook of Batteries, Third Edition. McGraw Hill. http://dl.icdst.org/pdfs/files/b334382400c223631bea924f87b0a1ba.pdf
• Lithium Batteries in All Sizes & Brand Names. (2020). Megabatteries.com. https://www.megabatteries.com/?cat1=31

5 Surprising Ways Volunteering Improves Your Physical Health by Joanie Faletto

• Poulin, Michael J. "Volunteering predicts health among those who value others: Two national studies." Health Psychology 33.2 (2014): 120. https://www.researchgate.net/profile/Michael_Poulin/publication/236137739_Volunteering_Predicts_Health_Among_Those_Who_Value_Others_Two_National_Studies/links/00b495179591abfff5000000.pdf
• Schroeder, D. A., Graziano, W. G., Piliavin, J. A., & Siegl, E. (2015). Health and Well-being Consequences of Formal Volunteering. The Oxford Handbook of Prosocial Behavior. https://doi.org/10.1093/oxfordhb/9780195399813.013.024
• Schreier, H. M. C., Schonert-Reichl, K. A., & Chen, E. (2013). Effect of Volunteering on Risk Factors for Cardiovascular Disease in Adolescents. JAMA Pediatrics, 167(4), 327. https://doi.org/10.1001/jamapediatrics.2013.1100
• Okun, M. A., Yeung, E. W., & Brown, S. (2013). Volunteering by older adults and risk of mortality: A meta-analysis. Psychology and Aging, 28(2), 564–577. https://doi.org/10.1037/a0031519
• Brown, W. M., Consedine, N.S., Magai, C. (2005) "Altruism relates to health in an ethnically diverse sample of older adults." The Journals of Gerontology Series B: Psychological Sciences and Social Sciences 60.3 : P143-P152. https://academic.oup.com/psychsocgerontology/article/60/3/P143/559390
• Renter, E. (2015). What Generosity Does to Your Brain and Life Expectancy. US News & World Report; U.S. News & World Report. https://health.usnews.com/health-news/health-wellness/articles/2015/05/01/what-generosity-does-to-your-brain-and-life-expectancy

These duckbill dinos may have crossed an ocean to reach Africa by author Steffie Drucker

• McRae, M. (2020, November 10). The fossil of a duckbill dinosaur has been found on the “wrong” continent. Livescience.com; Live Science.dinosaur-fossil-found-wrong-continent.html"> https://www.livescience.com/duckbill-dinosaur-fossil-found-wrong-continent.html
• Goodyer, J., & Science, P. (2020, November 5). Duckbilled dinosaurs crossed oceans to reach Africa, fossil reveals. BBC Science Focus Magazine; BBC Science Focus Magazine. https://www.sciencefocus.com/news/duckbilled-dinosaurs-crossed-oceans-to-reach-africa-fossil-reveals/
• The first duckbill dinosaur fossil from Africa hints at how dinosaurs once crossed oceans. (2020). EurekAlert!tfd110420.php"> https://www.eurekalert.org/pub_releases/2020-11/uob-tfd110420.php
• Longrich, Nicholas R., et al. "The first duckbill dinosaur (Hadrosauridae: Lambeosaurinae) from Africa and the role of oceanic dispersal in dinosaur biogeography." Cretaceous Research (2020): 104678. https://doi.org/10.1016/j.cretres.2020.104678.
• Cretaceous Period | Definition, Climate, Dinosaurs, & Map | Britannica. (2020). In Encyclopædia Britannica. https://www.britannica.com/science/Cretaceous-Period
• Episode about monkeys on rafts: https://www.curiositydaily.com/why-we-get-warning-fatigue-prehistoric-monkeys-crossed-the-atlantic-on-rafts-and-why-new-lovebirds-feel-so-familiar/

Subscribe to Curiosity Daily to learn something new every day with Cody Gough and Ashley Hamer. You can also listen to our podcast as part of your Alexa Flash Briefing; Amazon smart speakers users, click/tap “enable” here: https://www.amazon.com/Curiosity-com-Curiosity-Daily-from/dp/B07CP17DJY

Find episode transcript here: daily-4e53644e.simplecast.com/episodes/do-single-a-batteries-exist">https://curiosity-daily-4e53644e.simplecast.com/episodes/do-single-a-batteries-exist