PROSPECT PARK - The Prospect Park Zoo is holding a contest to pick the names for new baby tamarins which have recently made their public debut.

The twin babies are less than 1 week old and 6-inches long, but still too young for zookeepers to determine their gender.

The primates are native to South America, typically traveling in groups of 20 or more.

The zoo is accepting name suggestions until Friday and will officially release the winning names on Sunday.