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 ...

The term “de-extinction” often conjures images of Jurassic Park-style genetic manipulation, complete with ethical dilemmas and ecological chaos. But the reality of functional de-extinction—the ...

"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 ...

In centuries past, large flocks of noisy, brightly colored parrots squawked their way across the United States—from New England, to Florida, to eastern Colorado. The Carolina parakeet, or Conuropsis ...

Many experts believe we may soon face a mass extinction event, with a high proportion of Earth’s species dying out. Projections indicate the climate will continue to change for centuries to come, and ...