The leopard, a healthy-looking animal a metre long (3 feet) and weighing about 40 kilos (90 pounds) was caught on video at night at the Dermakot Forest Reserve in Malaysian Borneo's Sabah state.
"What surprised us was that whileare very elusive cats, this one was not scared at all," said Azlan Mohamed, a field scientist with University Sabah Malaysia.
"Despite our powerful spot lights and the roar of our vehicle's engine, it walked around our vehicle calmly," he told AFP.
"It is rare to see the big cat in the wild. These cats are usually shy of humans, it was by chance we caught it on video."