It takes 132-134 days for the Golden Headed Lion Tamarin to have babies. They have 1-3 babies and often have twins. The babies are very cute at birth. The mother keeps a very close eye on them to make sure predators don't attack them. The females can give birth up to two times per year.
Tamarins learn about raising their young by helping to raise their siblings.
When they were first born, the babies clung tightly to their parents' backs as they moved through the tree branches in the exhibit. They looked like patches of scruffy hair. When they got older they ventured out onto the branches of the trees on their own. The Brandywine Zoo's Golden Headed Lion Tamarins are part of an important international captive breeding program established to ensure the continued existence of these rare and wonderful animals. The Zoo has been a successful part of the international efforts to save the tamarins of South America.