Japan's most-wanted fugitive has been eluding police for nearly a month. He slips urban dragnets. He runs through crowded train stations, shocking commuters. He even urinates in public.

That may not be too surprising — since the culprit is a wild monkey. The cheeky, red-faced primate has been giving Tokyo authorities a headache since it showed up on city streets a few weeks ago. "This monkey is driving us crazy," said Tadayoshi Toyama, a police official in the Kanda district, where the monkey was seen about a week ago. "It's so agile, and we only have nets."

The Japanese macaque first leapt to the national stage in August. It showed up in Shibuya Station and gazed down at the crowd from atop a train schedule board before deftly escaping dozens of police and dashing to a park.