Skip to content
  • Happy Health
  • Happy Mindset
  • Animal Wonders
  • About Us
    • Team
  • Subscribe
Menu
  • Happy Health
  • Happy Mindset
  • Animal Wonders
  • About Us
    • Team
  • Subscribe
Happy News

The Smallest Dinosaur In South America Just Answered A 90 Million Year Question

Scientists have spent decades puzzling over one of the strangest groups of dinosaurs that ever walked the Earth, and a tiny fossil from the mountains of Argentina just handed them the answers they have been waiting for. Researchers from the University of Minnesota uncovered a nearly complete skeleton of a bird-like dinosaur called Alnashetri in the fossil-rich region of Patagonia, and what they found has completely rewritten the accepted timeline of how this unusual creature and its relatives evolved and eventually spread across the entire ancient world. The dinosaur weighed less than two pounds fully grown, making it one of the smallest non-bird dinosaurs ever discovered in South America, and its near-perfect condition after 90 million years in the ground left the entire research team stunned. The lead researcher called it a paleontological Rosetta Stone, meaning it finally gave scientists a reliable reference point to make sense of all the incomplete and confusing pieces that had been found before.

Before this discovery, most well-preserved fossils from this group had only ever been found in Asia, leaving a massive and frustrating gap in the evolutionary story that scientists could not fill. The new skeleton revealed that these dinosaurs shrank down to tiny sizes first, long before they developed the strange stubby arms and specialized diet that their later relatives became famous for. Microscopic examination of the bones confirmed the animal was fully grown and at least four years old, proving these creatures stayed small throughout their entire lives rather than shrinking with age. Scientists now believe the whole group appeared much earlier than previously thought and spread across the globe while the continents were still connected as one enormous landmass, which explains why their fossils have since turned up scattered from South America all the way to Asia.

Source: https://www.sciencedaily.com/releases/2026/03/260309225231.htm

PrevPreviousNew Mars Discovery Has Scientists Stumped
NextThailand’s Ghost Cat Just Came Back From The DeadNext

Recent Articles

Happy News

Eating Eggs Regularly May Cut Alzheimers Risk By Up To 27 Percent

May 9, 2026

A new study from Loma Linda University Health has found that adults 65 and older who eat eggs regularly have a significantly lower risk of developing Alzheimer’s disease, with people who consumed at least one egg per day for five or more days a week showing up to a 27

Read More
Happy News

Birdwatching Among Gen Z In Britain Has Grown By Over 1000 Percent Since 2018 And The Reasons Why Are Beautiful

May 8, 2026

Birdwatching has quietly become one of the fastest-growing hobbies among young people in Britain, with new research from the Royal Society for the Protection of Birds finding that nearly 750,000 people aged 16 to 29 now birdwatch regularly, a staggering increase of more than 1,000 percent since 2018. The study

Read More
Happy News

Meet The Record Holders Who Prove That Age Is Genuinely Just A Number

May 8, 2026

Guinness World Records has published a new feature celebrating some of the most extraordinary older athletes on the planet, a collection of record holders that makes a compelling case that age really is just a number. Leading the group is Mathea Allansmith of Hawaii, born in 1930, who took up

Read More
« Previous Next »
  • Privacy Notice
  • Accessibility Notice
  • Do Not Sell or Share My Personal Information
  • Unsubscribe
  • Terms and Conditions
  • Privacy Policy
  • Privacy Notice
  • Accessibility Notice
  • Do Not Sell or Share My Personal Information
  • Unsubscribe
  • Terms and Conditions
  • Privacy Policy
Copyright © 2026 HappyNews.