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The Conversation

‘Jaws’ portrayed sharks as monsters 50 years ago, but it also inspired a generation of shark scientists

  • Written by Gavin Naylor, Director of Florida Program for Shark Research, University of Florida
imageA paleontologist wears a T-shirt showing _Strophodus rebecae_, a shark species with flat teeth that lived millions of years ago.Juan Pablo Pino/AFP via Getty Images

Human fear of sharks has deep roots. Written works and art from the ancient world contain references to sharks preying on sailors as early as the eighth century B.C.E.

Relayed back to...

Read more: ‘Jaws’ portrayed sharks as monsters 50 years ago, but it also inspired a generation of shark...

Sleep can give athletes an edge over competitors − but few recognize how fundamental sleep is to performance

  • Written by Joanna Fong-Isariyawongse, Associate Professor of Neurology, University of Pittsburgh
imageSleep has been an underappreciated strategy for gaining an edge over an opponent at any level of athletic competition.AP Photo/Alex Brandon

In the adrenaline-packed world of professional sports, the power of sleep rarely gets adequate attention.

A healthy sleep pattern can be a stealthy game plan for athletes to gain an edge over their opponents....

Read more: Sleep can give athletes an edge over competitors − but few recognize how fundamental sleep is to...

Teens on social media need both protection and privacy – AI could help get the balance right

  • Written by Afsaneh Razi, Assistant Professor of Information Science, Drexel University
imageSocial media can be both dangerous and a lifeline for teens.The Good Brigade/DigitalVision via Getty Images

Meta announced on Jan. 9, 2024, that it will protect teen users by blocking them from viewing content on Instagram and Facebook that the company deems to be harmful, including content related to suicide and eating disorders. The move comes as...

Read more: Teens on social media need both protection and privacy – AI could help get the balance right

Eating disorders are the most lethal mental health conditions – reconnecting with internal body sensations can help reduce self-harm

  • Written by April Smith, Associate Professor of Psychological Sciences, Auburn University
imageAn increased disconnect from your body can make it easier to harm yourself, whether by disordered eating or suicide.Maskot/Maskot via Getty Images

Did you know that anorexia is the most lethal mental health condition? One person dies from an eating disorder every hour in the U.S. Many of these deaths are not from health consequences related to...

Read more: Eating disorders are the most lethal mental health conditions – reconnecting with internal body...

This course examines how conflicts arise over borders

  • Written by Nita Prasad, Professor of History, Quinnipiac University
imageBorder conflicts, spanning different time periods and places, are behind many of the big international disputes todaypicture alliance via Getty Imagesimage

Uncommon Courses is an occasional series from The Conversation U.S. highlighting unconventional approaches to teaching.

Title of course:

Borders and Battles: The Historical Roots of Geopolitical...

Read more: This course examines how conflicts arise over borders

How Black male college athletes deal with anti-Black stereotypes on campus

  • Written by Jonathan Howe, Assistant Professor of Sport Management, Temple University
imageProfessors have lower academic expectations of Black college athletes compared with white college athletes, a study found.supersizer/E+ Collection/Getty Images

In an effort to avoid stereotypes about Black male athletes, such as being labeled a “dumb jock,” Spike, a college football player, says he wore athletic clothes to class as...

Read more: How Black male college athletes deal with anti-Black stereotypes on campus

What Americans can learn from Danish masculinity

  • Written by Marie Helweg-Larsen, Professor of Psychology, Dickinson College
imageDenmark's King Frederik X wipes away a tear as he waves to a crowd of 300,000 people.Martin Meissner/AP Photo

When a leader cries in public, is it a sign of weakness?

On Jan. 14, 2023, Denmark’s Crown Prince Frederik was crowned King Frederik X after his mother, Queen Margrethe II, announced she would be abdicating the throne during her...

Read more: What Americans can learn from Danish masculinity

The surprising reason why insects circle lights at night: They lose track of the sky

  • Written by Samuel Fabian, Postdoctoral Research Associate in Bioengineering, Imperial College London
imageA multiple-exposure photograph of insects circling a light at night.Samuel Fabian, CC BY-ND

It’s an observation as old as humans gathering around campfires: Light at night can draw an erratically circling crowd of insects. In art, music and literature, this spectacle is an enduring metaphor for dangerous but irresistible attractions. And...

Read more: The surprising reason why insects circle lights at night: They lose track of the sky

What is an atmospheric river? With California under flood alerts, a hydrologist explains the good and bad of these storms and how they’re changing

  • Written by Qian Cao, Hydrologist, Center for Western Weather and Water Extremes, University of California, San Diego
imageA satellite image shows a powerful atmospheric river hitting the U.S. West Coast on Jan. 31, 2024.NOAA GOES

Forecasters warned of dangerous flooding, heavy mountain snow and a heightened risk of mudslides and avalanches Feb. 4-6, 2024, as a powerful atmospheric river took aim at California. It’s the latest in a series of atmospheric rivers to...

Read more: What is an atmospheric river? With California under flood alerts, a hydrologist explains the good...

What is an atmospheric river? With flooding and mudslides in California, a hydrologist explains the good and bad of these storms and how they’re changing

  • Written by Qian Cao, Hydrologist, Center for Western Weather and Water Extremes, University of California, San Diego
imageA satellite image shows a powerful atmospheric river hitting the U.S. West Coast on Jan. 31, 2024.NOAA GOES

Millions of Californians were under flood alerts and warnings of excessive rainfall on Feb. 5, 2024, as a powerful atmospheric river sat over Southern California. Los Angeles saw one of its wettest days on record with over 4 inches of rain on...

Read more: What is an atmospheric river? With flooding and mudslides in California, a hydrologist explains...

More Articles ...

  1. What is an atmospheric river? A hydrologist explains the good and bad of these flood-prone storms and how they’re changing
  2. What is an atmospheric river? With millions of people under flood alerts, a hydrologist explains the good and bad of these storms and how they’re changing
  3. Dog care below freezing − how to keep your pet warm and safe from cold weather, road salt and more this winter
  4. Telehealth makes timely abortions possible for many, research shows
  5. Backlash to transgender health care isn’t new − but the faulty science used to justify it has changed to meet the times
  6. Why Trump’s control of the Republican Party is bad for democracy
  7. The opening of India’s new Rama temple made waves – but here’s what the central ritual actually meant
  8. Why AI can’t replace air traffic controllers
  9. Longtime NRA chief Wayne LaPierre is leaving the gun group in trouble but still powerful
  10. For 150 years, Black journalists have known what confederate monuments really stood for
  11. Colorado limits plastic bags, Boulder expands fees – but do bans and fines actually reduce waste?
  12. Boulder strengthens rules against plastic bags – but do bans and fines actually reduce waste?
  13. Drone attack on American troops risks widening Middle East conflict – and drawing in Iran-US tensions
  14. El Salvador voters set to trade democracy for promise of security in presidential election
  15. Nonwhite people are drastically underrepresented in local government
  16. Israeli Prime Minister Benjamin Netanyahu faces a dilemma: Free the hostages or continue the war in Gaza?
  17. Nonprofit hospitals have an obligation to help their communities, but the people who live nearby may see little benefit
  18. Cybercrime victims who aren’t proficient in English are undercounted – and poorly protected
  19. That sharp, green smell of freshly cut grass? It’s a plant’s cry for help – and it may work as a less toxic pesticide for farmers
  20. Popularly known as ‘gas station heroin,’ tianeptine is being sold as a dietary supplement – with deadly outcomes
  21. What latest polling says about the mood in Ukraine – and the desire to remain optimistic amid the suffering
  22. Who created the alphabet? A historian describes the millennia-long story of the ABCs
  23. When is criticism of Israel antisemitic? A scholar of modern Jewish history explains
  24. Colorado voters seeking to disqualify Trump from the ballot tell Supreme Court Jan. 6 ‘will forever stain’ US history
  25. UN court ruling against Israel shows limits of legal power to prevent genocide − but rapid speed
  26. In the market for a car? Soon you’ll be able to buy a Hyundai on Amazon − and only a Hyundai
  27. Most state abortion bans have limited exceptions − but it’s hard to understand what they mean
  28. France’s biggest Muslim school went from accolades to defunding – showing a key paradox in how the country treats Islam
  29. Our sense of taste helps pace our eating – understanding how may lead to new avenues for weight loss
  30. Treatment can do more harm than good for prostate cancer − why active surveillance may be a better option for some
  31. Why are so many robots white?
  32. What UAW backing means for Biden − and why the union’s endorsement took so long
  33. How to read a Supreme Court case: 10 tips for nonlawyers
  34. Thinking about work as a calling can be meaningful, but there can be unexpected downsides as well
  35. A Western-imposed peace deal in Ukraine risks feeding Russia’s hunger for land – as it did with Serbia
  36. ‘Strife in the courtroom’ − a former federal judge discusses Trump’s second trial for defaming E. Jean Carroll
  37. Could a court really order the destruction of ChatGPT? The New York Times thinks so, and it may be right
  38. Ice storms, January downpours, heavy snow, no snow: Diagnosing ‘warming winter syndrome’
  39. Nazi genocides of Jews and Roma were entangled from the start – and so are their efforts at Holocaust remembrance today
  40. How to protect your data privacy: A digital media expert provides steps you can take and explains why you can’t go it alone
  41. From New York to Jakarta, land in many coastal cities is sinking faster than sea levels are rising
  42. A newly identified ‘Hell chicken’ species suggests dinosaurs weren’t sliding toward extinction before the fateful asteroid hit
  43. Humans are depleting groundwater worldwide, but there are ways to replenish it
  44. In an ancient church in Germany, a 639-year organ performance of a John Cage composition is about to have its next note change
  45. Domestic woes put Kim Jong Un on the defensive – and the offensive – in the Korean Peninsula
  46. Combining two types of molecular boron nitride could create a hybrid material used in faster, more powerful electronics
  47. Pictures have been teaching doctors medicine for centuries − a medical illustrator explains how
  48. Healing from child sexual abuse is often difficult but not impossible
  49. Biden’s use of military in Yemen upsets congressional progressives, but fits with long tradition of presidents exercising commander in chief’s power
  50. 1 in 10 US workers belong to unions − a share that’s stabilized after a steep decline