An international research team has rediscovered a dinosaur tracksite in the Saijrakh area of northern Mongolia. The site was ...

Hidden in Bolivia’s seasonal wetlands, a small fish that scientists had written off as extinct for more than two decades has surfaced alive, vivid, and unexpectedly resilient. Its return from presumed ...

The animals — a pygmy long-fingered possum and a newly identified ring-tailed glider — are examples of rare “Lazarus species” that reappear after vanishing from the scientific record. Each species has ...