A New Baby Monkey Has Been Born At Philadelphia Zoo! Introducing baby Quý Báu...the Zoo's very first Francois' langur. She was born back on December 13th of 2020 and fun fact, her name translates to "precious" in Vietnamese. This baby monkey is of an endangered species who home resides in China or Vietnam...and now the Eastern part of the United States. Enter your number to get our free mobile app According to the zoo's staff, both baby Quý and her mom are currently doing well. Right after birth, however, Quý's mom actually did not attend to her which is not all that uncommon.