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 ...

In a scientific breakthrough that could forever change how humans interact with our planet, Colossal Biosciences said it has brought back an extinct animal that last walked the Earth roughly 10,000 ...