NewsPronto

 
Men's Weekly

.

USA Conversation

The Conversation USA

The Conversation USA

Fossilized dinosaur eggshells can preserve amino acids, the building blocks of proteins, over millions of years

  • Written by Evan Thomas Saitta, Postdoctoral Scholar in Paleontology, University of Chicago
imageA dinosaur eggshell cross section, as imaged under fluorescence microscopy. Evan Saitta

As a scientist, lab work can sometimes get monotonous. But in 2017, while a Ph.D. student of paleobiology at the University of Bristol in the U.K., I heard a gleeful exclamation from across the room. Kirsty Penkman, head of the North East Amino Acid Racemization...

Read more: Fossilized dinosaur eggshells can preserve amino acids, the building blocks of proteins, over...

More Articles ...

  1. Why Sikhs celebrate the festival of Baisakhi
  2. Rebuilding Gaza was seen as a ‘Herculean’ task before Oct. 7; six months of bombing has led to crises that will long outlive the war
  3. Dali hit Key Bridge with the force of 66 heavy trucks at highway speed
  4. US media coverage of new science less likely to mention researchers with African and East Asian names
  5. Coastal wetlands can’t keep pace with sea-level rise, and infrastructure is leaving them nowhere to go
  6. A dramatic schism over social issues? The United Methodist Church has been here before – but this time, America’s religious landscape is far different
  7. Fetal personhood rulings could nullify a pregnant patient’s wishes for end-of-life care
  8. Could a telescope ever see the beginning of time? An astronomer explains
  9. Happier, more connected neighborhoods start right in the front yard
  10. What causes earthquakes in the Northeast, like the magnitude 4.8 that shook New Jersey? A geoscientist explains
  11. College athletes still are not allowed to be paid by universities − here’s why
  12. Biden steps up pressure on Israel − using the key levers available against an ally with strong domestic support
  13. Rwandan genocide, 30 years on: Omitting women’s memories encourages incomplete understanding of violence
  14. Yes, efforts to eliminate DEI programs are rooted in racism
  15. Loneliness can kill, and new research shows middle-aged Americans are particularly vulnerable
  16. Rural students’ access to Wi-Fi is in jeopardy as pandemic-era resources recede
  17. Why the Chiefs and Royals couldn’t convince Kansas City voters to foot the bill for their stadiums
  18. Why courts aren’t the fastest or clearest ways to solve election disputes – a former federal judge explains
  19. Brain scans of Philly jazz musicians reveal secrets to reaching creative flow
  20. Why batteries come in so many sizes and shapes
  21. A natural deception: 3 marketing myths the supplement industry wants you to swallow
  22. In 1877, a stained-glass window depicted Jesus as Black for the first time − a scholar of visual images unpacks its history and significance
  23. During the 2024 eclipse, biologists like us want to find out how birds will respond to darkness in the middle of the day
  24. Philadelphia’s minimum wage has been stuck at $7.25 an hour since 2009 – here’s why efforts to raise it have failed
  25. Climate engineering carries serious national security risks − countries facing extreme heat may try it anyway, and the world needs to be prepared
  26. For some Christians, a solar eclipse signals the second coming of Christ
  27. Would you sit on a jury to review government regulations? Citizen oversight panels could make this process more open and democratic
  28. What is metabolism? A biochemist explains how different people convert energy differently − and why that matters for your health
  29. Online child safety laws could help or hurt – 2 pediatricians explain what’s likely to work and what isn’t
  30. Why rural white Americans’ resentment is a threat to democracy
  31. Israeli strike on World Central Kitchen aid convoy shows growing danger of humanitarian work in conflict zones
  32. Growing quickly helped the earliest dinosaurs and other ancient reptiles flourish in the aftermath of mass extinction
  33. Nex Benedict’s suicide coincides with a wave of anti-LGBTQ+ laws – and some people’s misunderstanding about transgender and nonbinary individuals
  34. Even hands-free, phones and their apps cause dangerously distracted driving
  35. Could sharing a bedroom with your pets be keeping you from getting a good night’s sleep?
  36. A century after the EEG was discovered, it remains a crucial tool for understanding the brain
  37. Military personnel swear allegiance to the Constitution and serve the American people – not one leader or party
  38. For the Maya, solar eclipses were a sign of heavenly clashes − and their astronomers kept sophisticated records to predict them
  39. Beyoncé’s ‘Blackbiird’ breathes new life into a symbol that has inspired centuries of Black artists, musicians and storytellers
  40. Who are today’s climate activists? Dispelling 3 big myths for Earth Month
  41. March Madness brings unique gambling risks for college students
  42. Hope is not the same as optimism, a psychologist explains − just look at MLK’s example
  43. How Trump’s lawyers would fail my constitutional law class with their Supreme Court brief on criminal immunity
  44. The most important voice on Beyoncé’s new album
  45. America’s green manufacturing boom, from EV batteries to solar panel production, isn’t powered by renewable energy − yet
  46. Affordable stroke-risk screening could save the lives of many children in sub-Saharan Africa with sickle cell disease
  47. China’s universities just grabbed 8 of the top 10 spots in one worldwide science ranking – without changing a thing
  48. China’s universities just grabbed 6 of the top 10 spots in one worldwide science ranking – without changing a thing
  49. ‘Fake news’ legislation risks doing more harm than good amid a record number of elections in 2024
  50. Why aren’t there solar-powered cars?