Officially, Earth boasts roughly two million species. Unofficially, scientists suspect there could be millions — perhaps over 100 million — more. Each year, scientists add thousands of new species to ...

Tigers once roamed from Turkey to China and as far north as Russia and south to Indonesia. Today, they inhabit around 6% of their ancient grounds and are on the brink of extinction. These beautiful ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Felines comprise all cat species, from domestic cats to big ...

NEW YORK — Tiger muskellunge are a sterile, fast-growing cross between northern pike and muskellunge. They have long, cylindrical-shaped bodies like their parental species, and can reach similar sizes ...