Once widespread across Asia, wild tigers now survive mainly in one country. New official figures reveal where most tigers live today, why it matters globally, and what challenges still remain.

India now boasts the world's largest wild tiger population, estimated at 3,682 individuals, significantly surpassing Russia ...

(CNN) — The largest apex predator in the tropical seas, tiger sharks are notoriously fierce. They can grow to more than six meters (20 feet), have sharp serrated teeth and are second only to great ...