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Why do dogs love to play with trash?

  • Written by Nancy Dreschel, Associate Teaching Professor of Small Animal Science, Penn State
imageDogs will be dogs.Raul Arboleda/AFP via Getty Images

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com.

Why do dogs love to play with trash? – Sarah G٫ age 11٫ Seguin٫ Texas

When I think about why dogs do something, I try...

Read more: Why do dogs love to play with trash?

What is a ‘revisionist’ state, and what are they trying to revise?

  • Written by Andrew Latham, Professor of Political Science, Macalester College
imageA meeting of top diplomats from China, Iran and Russia – three so-called revisionist powers.Photo by Getty Images

Once upon a time, “revisionist power” was a term reserved for nations trying to overturn the postwar liberal order – the usual suspects being countries like Russia, China or Iran.

But lately, that concept is start...

Read more: What is a ‘revisionist’ state, and what are they trying to revise?

As ‘right to die’ gains more acceptance, a scholar of Catholicism explains the position of the Catholic Church

  • Written by Mathew Schmalz, Professor of Religious Studies, College of the Holy Cross
imageIn recent years, euthanasia and assisted death rates have risen worldwide.Cavan Images / Raffi Maghdessian via Getty images

An individual’s “right to die” is becoming more accepted across the globe. Polls show that most Americans support allowing doctors to end a patient’s life upon their request. Assisted suicide is now...

Read more: As ‘right to die’ gains more acceptance, a scholar of Catholicism explains the position of the...

The Panama Canal’s other conflict: Water security for the population and the global economy

  • Written by Karina Garcia, Researcher and Lecturer in Climate, Universidad Tecnológica de Panamá
imageThe Panama Canal carries cargo ships between the Atlantic and Pacific oceans, cutting weeks off shipping time.Danny Lehman/The Image Bank via Getty Images

The Panama Canal is one of the most important waterways in the world, with about 7% of global trade passing through. It also relies heavily on rainfall. Without enough freshwater flowing in, the...

Read more: The Panama Canal’s other conflict: Water security for the population and the global economy

How is classified information typically shared and can officials declassify secrets whenever they want? A national security expert explains

  • Written by Dakota Rudesill, Associate Professor of Law, The Ohio State University
imageDirector of Intelligence Tulsi Gabbard testifies during a House Permanent Select Committee on Intelligence hearing on March 26, 2025, in Washington. Nathan Posner/Anadolu via Getty Images

U.S. District Judge James Boasberg on March 27, 2025, ordered top Trump administration officials to preserve records of their messages sent on the messaging app...

Read more: How is classified information typically shared and can officials declassify secrets whenever they...

‘Everyday discrimination’ linked to increased anxiety and depression across all groups of Americans

  • Written by Monica Wang, Associate Professor of Public Health, Boston University
imageEveryday discrimination happens to all races and genders.FG Trade Latin/E+ via Getty Images

People who most frequently encounter everyday discrimination – those subtle snubs and slights of everyday life – are more likely to suffer from anxiety and depression.

What’s more, that finding remains true no matter the person’s...

Read more: ‘Everyday discrimination’ linked to increased anxiety and depression across all groups of Americans

From censorship to curiosity: Pope Francis’ appreciation for the power of history and books

  • Written by Joëlle Rollo-Koster, Professor of Medieval History, University of Rhode Island
imagePope Francis delivers the Angelus noon prayer in St. Peter's Square, at the Vatican, on Nov. 10, 2024.AP Photo/Gregorio Borgia

In January 2025, while doing research at the Vatican archives, I heard Pope Francis’ Sunday prayers in St. Peter’s Square. The pope reflected on the ceasefire that had just gone into effect in Gaza, highlighting...

Read more: From censorship to curiosity: Pope Francis’ appreciation for the power of history and books

Cuts to science research funding cut American lives short − federal support is essential for medical breakthroughs

  • Written by Deborah Fuller, Professor of Microbiology, School of Medicine, University of Washington
imageDivesting from the next generation of researchers means cutting the lifeblood of science and medicine.J Studios/DigitalVision via Getty Images

Nearly every modernmedical treatment can be traced to research funded by the National Institutes of Health: from over-the-counter and prescription medications that treat high cholesteroland pain to...

Read more: Cuts to science research funding cut American lives short − federal support is essential for...

Chronic kidney disease often goes undiagnosed, but early detection can prevent severe outcomes

  • Written by Eleanor Rivera, Assistant Professor of Population Health Nursing Science, University of Illinois Chicago
imageTesting for kidney function can help identify chronic kidney disease early enough to intervene.PIXOLOGICSTUDIO/Science Photo Library via Getty Images

For a disease afflicting 35.5 million people in the U.S., chronic kidney disease flies under the radar. Only half the people who have it are formally diagnosed.

The consequences of advanced chronic...

Read more: Chronic kidney disease often goes undiagnosed, but early detection can prevent severe outcomes

As federal environmental priorities shift, sovereign Native American nations have their own plans

  • Written by Alyssa Kreikemeier, Assistant Professor of History, University of Idaho
imageBilly Frank Jr., left, a Nisqually tribal elder, was arrested dozens of times while trying to assert his native fishing rights during the 'Fish Wars' of the 1960s and 1970s. In this 2014 photo, he stands with Ed Johnstone of the Quinault tribe.AP Photo/Ted S. Warren

Long before the large-scale Earth Day protests on April 22, 1970 – often...

Read more: As federal environmental priorities shift, sovereign Native American nations have their own plans

More Articles ...

  1. Want to stay healthier and fulfilled later in life? Try volunteering
  2. We analyzed racial justice statements from the 500 largest US companies and found that DEI officials really did have an influence
  3. First year of Georgia’s ‘foreign agent’ law shows how autocracies are replicating Russian model − and speeding up the time frame
  4. Myanmar’s civil war: How shifting US-Russia ties could tip balance and hand China a greater role
  5. What ‘The White Lotus’ gets wrong about the meaning and goals of common Buddhist practices
  6. Women are reclaiming their place in baseball
  7. Ecological disruptions are a risk to national security
  8. Wild marmots’ social networks reveal controversial evolutionary theory in action
  9. Signal is not the place for top secret communications, but it might be the right choice for you – a cybersecurity expert on what to look for in a secure messaging app
  10. Losing your job is bad for your health, but there are things you can do to minimize the harm
  11. From Greenland to Fort Bragg, America is caught in a name game where place names become political tools
  12. US swing toward autocracy doesn’t have to be permanent – but swinging back to democracy requires vigilance, stamina and elections
  13. Trump’s tariffs on Canada and Mexico could spell trouble for distilled spirits
  14. With Hooters on the verge of bankruptcy, a psychologist reflects on her time spent studying the servers who work there
  15. Mississippi’s education miracle: A model for global literacy reform
  16. Medetomidine is replacing xylazine in Philly street fentanyl − creating new hurdles for health care providers and drug users
  17. Maritime truce would end a sorry war on the waves for Russia that set back its naval power ambitions
  18. Sudan’s civil war: What military advances mean, and where the country could be heading next
  19. Deep-sea mining threatens sea life in a way no one is thinking about − by dumping debris into the thriving midwater zone
  20. The solution to workplace isolation might be in the gap − the generation gap
  21. Trump is not a king – but that doesn’t stop him from reveling in his job’s most ceremonial and exciting parts
  22. Trump’s desire to ‘un-unite’ Russia and China is unlikely to work – in fact, it could well backfire
  23. Engineering students explore how to ethically design and locate nuclear facilities in this college course
  24. Amid a tropical paradise known as ‘Lizard Island,’ researchers are cracking open evolution’s black box – scientist at work
  25. Mae Reeves used showstopping hats to fuel voter engagement and Black entrepreneurship
  26. Rethinking repression − why memory researchers reject the idea of recovered memories of trauma
  27. Ukraine will need major rebuilding when war ends − here’s why the US isn’t likely to invest in its recovery with a new Marshall Plan
  28. How many types of insects are there in the world?
  29. Genomic sequencing reveals previously unknown genes that make microbes resistant to drugs and hard to kill
  30. Poor neighborhoods, health care barriers are factors for heart disease risk in Black mothers
  31. National monuments have grown and shrunk under US presidents for over a century thanks to one law: The Antiquities Act
  32. How Japanese anime draws on religious traditions to explore themes of destiny, sacrifice and the struggle between desire and duty
  33. Egg prices soar as outdated supply chains crack under pressure
  34. Who gets to brand Puerto Rico: Its tourism agency or its biggest star?
  35. Trump’s executive order to dismantle the Education Department was inspired by the Heritage Foundation’s decades-long disapproval of the agency
  36. What are AI hallucinations? Why AIs sometimes make things up
  37. Why the words in your job posting may attract rule-bending narcissists
  38. Avoiding your neighbor because of how they voted? Democracy needs you to talk to them instead
  39. Defending humanitarian aid in terms of national security obscures its real purpose
  40. Trump’s firings of military leaders pose a crucial question to service members of all ranks
  41. Cuts to research into inequality, disparities and other DEIA topics harm science
  42. Helper bots in online communities diminish human interaction
  43. Digital imperialism: How US social media firms are using American law to challenge global tech regulation
  44. Debate over H-1B visas shines spotlight on US tech worker shortages
  45. What causes the powerful winds that fuel dust storms, wildfires and blizzards? A weather scientist explains
  46. Trump administration seeks to starve libraries and museums of funding by shuttering this little-known agency
  47. Tyrannical leader? Why comparisons between Trump and King George III miss the mark on 18th-century British monarchy
  48. 5 years on, true counts of COVID-19 deaths remain elusive − and research is hobbled by lack of data
  49. Atlantic sturgeon were fished almost to extinction − ancient DNA reveals how Chesapeake Bay population changed over centuries
  50. Insomnia can lead to heart issues − a psychologist recommends changes that can improve sleep