Learn about how quickly certain people adjust to time changes; how you can help slow jungle loss; and why ice cubes grow spikes.

Early birds adjust to time changes faster than night owls by Grant Currin

• “Springing forward” affects early birds less than night owls, study finds. (2021, July 20). EurekAlert! https://www.eurekalert.org/news-releases/472466

• Nield, D. (2021). Your Genes Could Affect How Well Your Body Adjusts to Daylight Saving Changes. ScienceAlert. https://www.sciencealert.com/how-well-we-adjust-to-daylight-saving-time-can-depend-on-our-genetics

• Tyler, J., Fang, Y., Goldstein, C., Forger, D., Sen, S., & Burmeister, M. (2021). Genomic heterogeneity affects the response to Daylight Saving Time. Scientific Reports, 11(1). https://doi.org/10.1038/s41598-021-94459-z

More from archaeologist Patrick Roberts:

• Pick up "Jungle: How Tropical Forests Shaped the World — and Us": https://www.basicbooks.com/titles/patrick-roberts/jungle/9781541600096/
• Website: https://www.patrickjroberts.com/
• Follow @palaeotropics on Twitter: https://twitter.com/palaeotropics
• Cheyenne Mountain Zoo Sustainable Palm Oil Shopping Guide app: https://www.cmzoo.org/conservation/orangutans-palm-oil/sustainable-palm-oil-shopping-app/
• WWF Palm Oil Buyers Scorecard: http://palmoilscorecard.panda.org/

Spiky ice cubes by Ashley Hamer (Listener question from Monica in Los Angeles)

• Occasionally the ice cubes in my freezer’s ice trays will develop a stalagmitelike shape without any obvious, unusual interference. Can you please explain what causes this? (2007, April 30). Scientific American. https://www.scientificamerican.com/article/experts-ice-spikes/
• Spikes on Ice Cubes. (2011). Utoronto.ca. https://www.physics.utoronto.ca/~smorris/edl/icespikes/icespikes.html
• Monica’s ice spike picture: https://drive.google.com/file/d/1oHVKZkDqGF5ktgNxnIU7QceAKa9u6-e0/view?usp=sharing

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