Tasting the air at Batu Caves

A long-tailed macaque balances on a narrow metal railing inside Batu Caves, Malaysia, its head tilted dramatically upwards and tongue extended towards the sky. With one hand gripping the railing and its long tail dangling below, the monkey appears momentarily lost in its own little world.

Is it tasting the air, mocking a passing tourist or simply daydreaming? The expression leaves plenty of room for interpretation. Long-tailed macaques (Macaca fascicularis) are known for their intelligence, curiosity and occasionally mischievous behaviour around visitors. At Batu Caves, where these monkeys roam freely among the limestone formations and temple structures, even an ordinary moment can become a surprisingly theatrical performance.