Nearly 70% of women in the U.S. use hair-coloring products ranging from bleach to permanent hair dye. Learn about the use of hair coloring in the ancient world and how a discovery in the 1800s brought about the hair dye we know of today. Discover the biochemistry of how different types of hair dye work, the economic strength of the industry, and more in this episode!

Discussion Includes:

Biochemistry of 4 Types of Hair Dye

History of Ancient Hair Dye

Modern Hair Dye from the 1800s to Today

Hair Dye & Health

Economics of the Hair Coloring subsection of the Cosmetics Industry

©Wolf & Stag Productions LLC, 2025

Image Credit: Rebecca Benezue/Demand Media, Found on Pinterest

Fly through the cosmos this week with Josh and Kara as they cycle through the births and deaths of various kinds of stars in our universe. Learn how stars have been classified over time and how some of our favorite telescopes (Hubble!) help scientists figure out how hot and old stars are across space. From the beautiful clouds of gas that are the “nurseries for stars” to black holes that form from the death of the largest stars, discover how the saying “we are all born of stardust” is true!

©️Wolf & Stag Productions LLC, 2025

Image Credit:

NASA, ESA, CSA, and STScI

NASA. (2024, October 22). Stars - NASA science. NASA. https://science.nasa.gov/universe/stars/

In honor of this month’s annual meteor shower, The Quadrantids, Josh and Kara explore some of Earth’s smaller and numerous neighbors: asteroids and comets. Learn what and where these Near Earth Objects (NEOs) are and how they turn into shooting stars! Finally, discover how an unofficial constellation named Earth’s annual December-January meteor shower: The Quadrantids.

©️Wolf & Stag Productions LLC, 2025

Image Credit:

NASA. (2018, July 25). What is a meteor shower?. NASA. https://spaceplace.nasa.gov/meteor-shower/en/

Building on Episode 2: Roots!, Josh goes deeper into the mysterious world of mycelium, molds, mildews, and more. Discover how the fungi, known as molds, became a vital part of medicine and what certain types of fungi have in common with BookTok’s favorite books.

©️Wolf & Stag Productions LLC, 2024

Image Credit:

By W.J.Pilsak, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=167753

Listen along as Kara and Josh learn more about the iconic holiday fruit, native to North America; from it's growing process to how canned cranberry sauce became a staple food at the winter holidays!

©️Wolf & Stag Productions LLC, 2024

Image Credit:

https://www.oncranberry.com/Cranberries.html

Josh guides us on a hike through the Redwoods and Pando to teach us about megaflora. From tree hollows to heartwoods, Josh and Kara discuss how Redwoods get so old and so tall, how many plants clone themselves to create new life, and why Pando is argued to be the largest living organism on the planet.

©️Wolf & Stag Productions LLC, 2024

Image Credit: © 2024 Humboldt County Visitors Bureau

We're digging down this week and researching the basics of root structures and mycelium! Learn as Josh presents about their similarities and differences and our hosts discuss their wider effect on our natural world. Topics include internal structures and common ancestors to how roots helped solve the Dust Bowl.

©️Wolf & Stag Productions LLC, 2024

Image Credit: Photo by Dr. Shannon Guichonhttps://www.nationalforests.org/blog/underground-mycorrhizal-network