Why don’t fish sink?

For scientists to solve the mysteries of the ocean, they need to start with questions like “how do fish float?” Duke University biology professor Sönke Johnsen joins host Krys Boyd to discuss the wonders of vertical migration, why sharks must keep swimming to stay alive, and the clues offered to biologists that help piece together the questions of aquatic life evolution. His book is “Into the Great Wide Ocean: Life in the Least Known Habitat on Earth.”This episode originally aired, December 5th, 2024. Learn about your ad choices: dovetail.prx.org/ad-choices

The culture war around trans rights has many headlines, but one hot button issue is gun rights. Writer and critic Grace Byron joins host Krys Boyd to discuss why gun ownership for trans individuals is becoming a political talking point, why owning a gun can affirm sexuality, and why gun violence is being blamed without merit on transgender ideology. Her article, “The Complexities of Trans Gun Ownership” was published in The New Yorker. Learn about your ad choices: dovetail.prx.org/ad-choices

The spooky season is here, and we might have Christian theology to thank for that. Bryan P. Stone is Leighton K. Farrell Endowed Dean at Southern Methodist University’s Perkins School of Theology. He joins host Krys Boyd to discuss ghosts, witches, vampires and more and how they germinate from Christian imagery, subvert traditional teachings and play on Chrisitan anxieties. His book is “Christianity and Horror Cinema.” Learn about your ad choices: dovetail.prx.org/ad-choices

 Two years of war ended when a U.S.-brokered ceasefire was signed between Israel and Hamas. Will it hold? Natasha Hall, senior associate at the Center for Strategic and International Studies, joins host Krys Boyd to discuss how President Trump’s strong demands on Israel and Hamas forced both sides to the table, and what happens to any future deals if both sides can’t keep to the terms of the agreement. Her Foreign Affairs article, co-authored with Joost R. Hiltermann, is “The Gaza Deal Is Not Too Big to Fail.”  Learn about your ad choices: dovetail.prx.org/ad-choices

Ready to travel to Mars? Doctors specializing in space medicine are working to get you there. Shayna Korol is a Future Perfect fellow at Vox, and she joins host Krys Boyd to discuss the new field of space medicine, where doctors try to anticipate and treat the many ways space travel affects and ails the body – from radiation to muscle loss – and how their research and breakthroughs might also help those of us who stay Earthbound. Her article is “Human bodies aren’t ready to travel to Mars. Space medicine can help.”  Learn about your ad choices: dovetail.prx.org/ad-choices

Big tech pretty much runs our lives; will these companies one day own power grids, too? Karen Weise, technology correspondent for The New York Times, joins host Krys Boyd to discuss how tech is driving up electricity costs for everyone, why municipalities are scrambling to upgrade their grids, and the prospects for selling power to cities that need it most. Her article is “Big Tech’s A.I. Data Centers Are Driving Up Electricity Bills for Everyone.” Learn about your ad choices: dovetail.prx.org/ad-choices

The cost of paying out Veterans Administration disability claims is more than the budget of the entire U.S. Army. Craig Whitlock is an investigative reporter who specializes in national security issues for The Washington Post. He joins host Krys Boyd to discuss how the veteran disability claim process works, the wide array of conditions covered and why administrators are reluctant to change how it operates. His article is “How some veterans exploit $193 billion VA program, due to lax controls.” Learn about your ad choices: dovetail.prx.org/ad-choices

There was a time when NGOs were revered, but now they’re often eyed with suspicion. Suparna Chaudhry is an associate professor of international affairs at Lewis & Clark and the author of the forthcoming book “Civil Societies, Uncivil States: State Repression of NGOs.” She joins guest host John McCaa to discuss what happened to the reputation of NGOs – which once were seen as philanthropic lifelines and now are accused of mismanagement and meddling in international affairs – and what happens to the people on the ground when these organizations do not function as intended. Her article “Why the World Turned on NGOs” was published in Foreign Policy. Learn about your ad choices: dovetail.prx.org/ad-choices

When someone decides to move to a new city, the top reasons are likely not what you would imagine. Patience Fairbrother, senior vice president of talent attraction at Development Counsellors International (DCI), joins host Krys Boyd to discuss their research into where highly-skilled talent lands and how cities can attract those in-demand workers. The DCI study is called “Talent Wars.” Learn about your ad choices: dovetail.prx.org/ad-choices

Mothers who opt for open adoption relationships hope for a future with their child — but it doesn’t always end up that way. Author Nicole Chung joins host Krys Boyd to discuss why open adoptions are more complicated than it may look from the outset, why some mothers find themselves shut out of their biological children’s lives, and how the experience of birth mothers in these arrangements has been understudied. Her article “When Adoption Promises Are Broken” was published in The Atlantic.   Learn about your ad choices: dovetail.prx.org/ad-choices