On December 21, 2012 twin marmosets were born here at the zoo! Right away mama had her hands full caring for her babies and this little one decided to be a rebel. We do not know the sexes as it will take a few more weeks before we can determine the sex. This little monkey decided to keep “wandering off” away from mama where he/she could not be properly cared for. To make sure the little monkey was getting the proper nutrition and care, staff had to intervene. Hopefully soon he/she will be back with mama…right now mama is doing great caring for the sibling! Marmoset monkeys are a very small monkey that only grow to weigh 8 – 9 OZ and are native to the Brazil area of South America.