[The Skydiving Secrets of Wandering Salamanders]-[Skydiving Salamander (8/29/22)]

Wow in the World · B1 · 2022-08-29

📋 Summary

The Unexpected Aerodynamics of Wandering Salamanders

In a recent episode of Wow in the World, hosts Mindy Thomas and Guy Raz embark on an adventurous trip to "Uncle Kenny's Big Old House of Fun" to experience skydiving. While the premise begins with comedic confusion, the core of the episode centers on a fascinating scientific discovery from the University of South Florida, recently published in Current Biology, regarding the "wandering salamanders" that inhabit the California redwoods.

Nature's Expert Skydivers

These "teeeny amphibians," often mistaken for lizards, live high in the canopy of California redwoods—the tallest trees on the planet, reaching up to 325 feet. To navigate between branches or descend to the forest floor, these creatures engage in what researchers characterize as "skydiving" or "sky falling." Unlike typical terrestrial movement, these salamanders have evolved specific biomechanical traits that allow them to fall with grace.

The Science of the Wind Tunnel

To study this behavior, scientists at the University of South Florida utilized a wind tunnel to replicate the conditions of a fall in a controlled environment. By placing a "wandering salamander" over a wind machine, researchers observed how the animal manipulated its body to control its descent. The findings revealed several key techniques:

Tail Manipulation: The salamander uses its tail to immediately twist its body, ensuring it is "facing the right way up" during the fall.
Limb Control: By tucking in its back legs, the salamander can adjust its speed and direction.
Aerodynamic Anatomy: The salamander's body is "rather flat," and it possesses "big feet and long toes." These features create significant wind resistance, functioning similarly to a parachute, which effectively slows the animal's descent.

From Salamanders to Human Skydiving

Drawing parallels between the salamanders' survival techniques and human activity, the episode highlights that "falling with grace" requires specific physical adjustments. Just as the salamanders spread their bodies to create resistance, the training video at Uncle Kenny’s emphasizes that human skydivers must "spread your body out" to maximize air resistance.

By distilling these complex biological maneuvers into understandable concepts, the researchers have provided a clearer picture of how wandering salamanders have mastered the art of falling. Whether it is a small amphibian navigating the massive California redwoods or a human in an indoor skydiving arena, the principles of aerial control remain rooted in the same fundamental physics of resistance and body orientation. This study serves as a brilliant example of how observing the "wow" in the natural world can teach us about the mechanics of movement and survival.

🎯Key Sentences

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📝Key Phrases

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📖 Transcript

Grownups, Wondery Plus subscribers can listen to Wow in the World early and ad-free right now.

Join Wondery Plus in the Wondery app or Wondery Kids Plus on Apple Podcasts.

Hey, Wowzer fans, Mindy here.

And before we start the show, I gotta let you know that this November, with a special new episode featuring our friends at Circle Round and Terrestrials on Radiolab for Kids,

And don't miss when Elmo from Sesame Street stops by Wow in the World to make us all belly laugh on November 24th.

Oh, but that's not all, Reg.

Or study on the web version →