A colobus monkey was born in an exhibit Saturday at the Maryland Zoo in Baltimore.
Zoo officials did not know for certain that one of their female colobus monkeys, 14-year-old Keri, was pregnant, the zoo's general curator, Mike McClure, said in a statement.
The monkeys are "secretive breeders," he said. The baby's father is 19-year-old Bisi, the zoo's only adult male colobus monkey.
Zoo workers have not yet dertermined the baby's sex, he said.
"We want the mother and baby to be as comfortable as possible, so we are not attempting to bring them off exhibit to check on the infant at this time," McClure said.
"The staff are monitoring the colobus very closely, and they have seen the baby nurse. We will continue to observe the monkeys, and when appropriate we will do our first veterinary check," he said.
Adult colobus monkeys are black and have long white tails. The fur on the infant's body is entirely white and will gradually change color, the statement said.
The Maryland Zoo now has four colobus monkeys. In addition to Keri, Bisi and the infant, the exhibit houses another adult female.
Colobus monkeys live in the forests of equatorial Africa, where the wild population is in decline because of deforestation and hunting, according to the zoo's statement.
Visitors can see the colobus monkeys in the zoo's Chimpanzee Forest.
twitter.com/stevekilarCopyright © 2015, The Baltimore Sun