A Javan langur digs for food from a lucky bag at the Singapore Zoo in Singapore, Jan. 27, 2016. The Singapore Zoo uses lucky bags to feed the monkeys their favorite treats as part of the Chinese New Year celebrations for the Year of the Monkey on Wednesday. (Xinhua/Then Chih Wey)
Two golden-headed lion tamarins dig for food from a lucky bag at the Singapore Zoo in Singapore, Jan. 27, 2016. The Singapore Zoo uses lucky bags to feed the monkeys their favorite treats as part of the Chinese New Year celebrations for the Year of the Monkey on Wednesday. (Xinhua/Then Chih Wey)
A golden-headed lion tamarin eats fruits from a lucky bag at the Singapore Zoo in Singapore, Jan. 27, 2016. The Singapore Zoo uses lucky bags to feed the monkeys their favorite treats as part of the Chinese New Year celebrations for the Year of the Monkey on Wednesday. (Xinhua/Then Chih Wey)
A Javan langur digs for food from a lucky bag at the Singapore Zoo in Singapore, Jan. 27, 2016. The Singapore Zoo uses lucky bags to feed the monkeys their favorite treats as part of the Chinese New Year celebrations for the Year of the Monkey on Wednesday. (Xinhua/Then Chih Wey)
Two golden-headed lion tamarins dig for food from a lucky bag at the Singapore Zoo in Singapore, Jan. 27, 2016. The Singapore Zoo uses lucky bags to feed the monkeys their favorite treats as part of the Chinese New Year celebrations for the Year of the Monkey on Wednesday. (Xinhua/Then Chih Wey)
