Grief for an animal at the end of its life is unlike any other emotion. It cleaves a depthless void that feels empty and hollow. It’s a feeling that animal keepers and caretakers know well, but it’s ...

Last year, hiking in Morocco’s eastern Atlas Mountains, I found an ammonite, a fossil of those spiral-shape cephalopods that to many symbolize paleontology itself. The fossilization process had turned ...

Global calamities like the one that doomed most dinosaurs forever alter the varieties of life found on Earth, but new research shows that it doesn't take a catastrophe to end entire lineages. An ...

"We should never forget that it is these personal struggles that make up the extinction process ... Extinction is not a cold calculus about the numbers of breeding females and the degree of genetic ...

Less than a year ago, United States company Colossal Biosciences announced it had “resurrected” the dire wolf, a megafauna-hunting wolf species that had been extinct for 10,000 years. Within two days ...