An event 20 years in the making, the Idaho Museum of Natural History created a 3D replica of an ancient crocodile skull, the ...

Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, ...

"The pace of change we’re seeing today is unlike anything we know of in the past 66 million years," said ecologist Jack Hatfield.

Natural glass found only in Australia could be evidence of an unknown, ancient asteroid impact, researchers say. A new analysis of impact-created "tektites" points to a powerful collision millions of ...

A badly crushed cranium unearthed decades ago from a riverbank in central China that once defied classification is now shaking up the human family tree, according to a new analysis. Scientists ...

The Red Sea became a desert about 6.2 million years ago, before a massive flood from the Indian Ocean turned it into a ...

Three million years ago, an extinct relative of today's great penguins—emperors and kings—lived in Aotearoa New Zealand. We know this because our new study published in the Journal of Paleontology ...