To answer a question or ask a new one, email lastword@newscientist.com Between 50,000 and 100,000 tonnes of light gases such ...

After years of searching worldwide, paleontologist Kenneth Lacovara found the extinction layer—and thousands of fossils—just ...

Dinosaurs' extinction "re-engineered" Earth's surface, according to new research. The reptiles had such an "immense" impact ...

New reconstructions of 540 million years of climate history show the planet tumbling between icehouse and hothouse states, ...

Dinosaurs’ extinction “re-engineered” Earth’s surface, according to new research. The reptiles had such an “immense” impact on the planet that their sudden exit led to wide scale changes in landscapes ...

Changes in rock formations from before and after the mass extinction event 66 million years ago may reflect how dinosaurs ...

Dinosaurs had such an immense impact on Earth that their sudden extinction led to wide-scale changes in landscapes—including ...

No brain, no problem. Despite their simplistic make-up, jellyfish use a decentralized system to navigate their environments. Read more.

It's safe to say that most of us are familiar with the concept of mass extinction. But this is by no means a recent ...

Dating dinosaur eggs has always been tricky because traditional methods rely on surrounding rocks or minerals that may have ...

Humans have wiped out more than 100 species — with many more on the brink or experiencing large declines in population.