Reeling from a cyclone that may have erased a chunk of its population, the Tapanuli orangutan, the world’s rarest great ape ...

The world's population is still growing, yet beneath these global statistics lies a different reality for dozens of countries ...

Just yesterday (Dec. 15), the Green River levee was breached, raising the specter of flash flooding in Tukwila, south of ...

The Lesser Antillean iguana is a critically endangered species that has vanished from much of the Eastern Caribbean. Among ...

While millions flock to Paris and Bali, there's an elite group of travelers who've ventured beyond the Instagram hotspots to ...