Crouching tigers, hidden cameras

Nepal set to be the first nation to double big cat numbers by 2022

BARDIA NATIONAL PARK, Nepal - Chayan Kumar Chaudhary flicked through photographs captured on a hidden camera in the jungle, hoping his favorite big cat - dubbed "selfie tiger" for its love of the limelight - had made another appearance.

Thousands of camera traps have helped conservationists track Nepal's wild tiger population, which has nearly doubled in recent years as the big cats claw their way back from the verge of extinction.