Dinosaurs

Tiny-armed alvarezsauroid dinosaurs might have been insect eaters, fossil scans suggest

June 1, 2026 feature Tiny-armed alvarezsauroid dinosaurs might have been insect eaters, fossil scans suggest Ingrid Fadelli Author Sadie Harley Scientific Editor Robert Egan Associate Editor Dinosaurs are estimated to have roamed Earth for over 165 million years, gradually evolving over time to survive in changing environments. Among the many fascinating groups of dinosaurs known to have lived on our planet are alvarezsauroids. These dinosaurs possessed extremely short but powerful forelimbs...

The asteroid that wiped out the dinosaurs may have created a vast underground habitat for life that lasted 8 million years

The asteroid that wiped out the dinosaurs may have created a vast underground habitat for life that lasted 8 million years The Chicxulub impact may have actually helped nurture life while destroying it, too. The asteroid impact that doomed the dinosaurs may also have built one of Earth's longest-lasting underground ecosystems. When a roughly 6-mile-wide (10-kilometer-wide) asteroid slammed into what is now Mexico's Yucatán Peninsula 66 million years ago, it triggered a global catastrophe...

Egypt fossils show modern ocean fish rose rapidly after dinosaur extinction

Egypt fossils show modern ocean fish rose rapidly after dinosaur extinction Sadie Harley Scientific Editor Robert Egan Associate Editor The extinction that ended the Age of Dinosaurs is best known for clearing the way for the Age of Mammals on land. Scientists have long suspected that the same catastrophe also transformed life in the seas, opening ecological space for the rise of modern marine fish faunas. Yet the timing and geography of that transition have remained uncertain because of the...

Dinosaur-killing asteroid impact site stayed hot for millions of years

The asteroid strike that wiped out the dinosaurs hit with such force that it took at least 8 million years for the impact site to cool down, creating a warm underground ecosystem where microscopic life thrived. The Chicxulub asteroid, which collided with Earth 66 million years ago at what is now Mexico, is thought to have been as large as 15 kilometres in diameter. The strike caused so much climate chaos that it wiped out three-quarters of species on Earth.

How did animals survive the asteroid that killed the dinosaurs?

An asteroid caused the demise of the nonavian dinosaurs 66 million years ago, so how did other animals survive?

Heron-like, fish-eating dinosaur from 70 million years ago discovered in Argentina

A new raptor-like dinosaur from some 70 million years ago that ate fish and behaved like modern herons has been unearthed from southern Patagonia. The new species, which has been named Kank australis, was identified based on the discovery of fossil remains including teeth, vertebrae, and toe bones.

We may finally know why dinosaurs like T. rex evolved tiny arms

Five different groups of predatory dinosaurs independently evolved disproportionately small arms, and it seems they did so because their heads became so large and powerful

This bizarre crocodile relative from the Triassic looked like an ostrich dinosaur

Dinosaur highway 'longest of its kind in the world'

The tracks were first spotted by a worker at Dewars Farm Quarry in Oxfordshire four years ago.

Lab-grown Tyrannosaurus leather: More chicken than dinosaur?

A handbag is promoted as the "world's first T. rex leather product". But scientists are questioning its authenticity.