A great Tyrannosaurus rex strides through the conifer trees of her territory, sniffing the air. She picks up the scent from ...

A newly described dinosaur that appears to have persisted beyond a catastrophic die-off is forcing scientists to rethink how mass extinctions actually play out on the ground. Instead of a clean break ...

A new study suggests that duplicated genomes gave some flowering plants the genetic flexibility needed to endure Earth’s ...

Dinosaurs appear to have been thriving before a giant asteroid hit the Earth 66 million years ago, paleontologists working in New Mexico said Thursday in the journal Science. Experts have long debated ...

Sixty-six million years ago, a huge asteroid famously hit the Earth, causing the extinction of dinosaurs and about half of ...

A groundbreaking study has revealed that dinosaurs in New Mexico were thriving right up until the asteroid impact that led to their extinction. This challenges previous theories suggesting a gradual ...

Nuclear war is much more unpredictable than asteroids, but, unlike the dinosaurs of 66 million years ago, humans can avoid ...

Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, causing mass extinction. New research suggests dinosaur populations were still ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Scientists have long debated whether ...

Most living organisms inherit two sets of chromosomes, one from each parent, but plants frequently undergo whole-genome ...