Humpback Hit Factory
Play episode · 21 min

There's a humpback whale song sensation that's sweeping the South Pacific. We'll learn about the burgeoning study of "whale culture"-and why these super smart cetaceans may have a lot more in common with us than we'd ever imagined. For more information on this episode visit nationalgeographic.com/overheard.


Want more?

Meet National Geographic Photographer Brian Skerry, and see examples of his work beneath the waves.

Read Ellen Garland's original paper on whale song transmission, and listen to the humpback audio recordings that helped her piece this phenomenon together.

Here's the backstory behind those whale songs you heard at the top of the show, from Roger Payne's Songs of the Humpback Whale.


Also explore:

Sperm whales in the Caribbean form clans that have their own unique dialects-and thus culture.

Video: Off the coast of Argentina, seasoned killer whales hunt sea lion pups.

Whale song recordings off Hawaii have revealed a strange series of deep beats almost inaudible to humans.

An unusual number of humpback whales are dying along the U.S. East Coast, and scientists are racing to figure out why.


Got something to say? Contact us!

overheard@natgeo.com

Click here to give us feedback on Overheard: https://www.surveymonkey.com/r/snoverheard

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Based on N Engl J Med 2020; 383:1263-1275. https://www.nejm.org/doi/full/10.1056/NEJMcpc2002420 Video version of this podcast: https://youtu.be/8lGmvFkAMOU Chubbyemu video of this case: https://youtu.be/qg76qIZ4BQ8 Laxative Brownie video from 2017: https://youtu.be/TMy0vJfKvzI Tweet me: https://twitter.com/hemereview  IG me: https://instagram.com/hemereview  FB me: https://facebook.com/hemereview Licorice candy has glycyrrhizin which increases cortisol (stress hormone) levels in the body. This causes hypokalemia. Hypo- low. Kal- kalium (potassium). emia- presence in blood. Potassium signals muscle relaxation. Low potassium, low relaxation. Heart can't relax, then it stops.  Real licorice candy is not easy to get in the United States. It's not at big chain grocery stores. Most of what you can buy from the big brands is licorice flavored, and won't do this. References: A 54-Year-Old Man with Sudden Cardiac Arrest. N Engl J Med 2020; 383:1263-1275. https://www.nejm.org/doi/full/10.1056/NEJMcpc2002420 The Pharmacological Activities of Glycyrrhizinic Acid (“Glycyrrhizin”) and Glycyrrhetinic Acid. Sweeteners. 2018 : 245–261. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7123798/ Sustained Leukocyte Count during Rising Cortisol Level. Acta Haematologica 118(2):73-6. https://www.researchgate.net/publication/6298458 https://www.nobelprize.org/prizes/medicine/1964/bloch/lecture/ Licorice-Induced Hypermineralocorticoidism. N Engl J Med 1991; 325:1223-1227. https://www.nejm.org/doi/full/10.1056/NEJM199110243251706 Young WF, et. al. Apparent mineralocorticoid excess syndromes (including chronic licorice ingestion). In: UpToDate, Post, TW (Ed), UpToDate, Waltham, MA, 2019. Quinkler M, Stewart PM. Hypertension and the cortisol-cortisone shuttle. J Clin Endocrinol Metab 2003; 88:2384. Funder JW. Apparent mineralocorticoid excess. J Steroid Biochem Mol Biol 2017; 165:151. Funder JW. 11 beta-Hydroxysteroid dehydrogenase: new answers, new questions. Eur J Endocrinol 1996; 134:267. --- Support this podcast: https://anchor.fm/chubbyemu/support
21 min
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