After losing two of the Yangtze River’s native wildlife icons — the baiji (a river dolphin) and the Chinese paddlefish — to dams and overfishing, and almost losing the Yangtze sturgeon,…

In July, naturalist Soumyadip Santra was on a trip to the Indian Sundarbans, part of the world’s largest mangrove forest, when he witnessed an unusual scene: a fishing cat jumped…