Adanna and Boipelo have made their public debut to visitors, but their bond is still growing. James says Boipelo is a very attentive mom, especially when she's helping her baby breathe at the water's surface.
"She'll find a shallow spot where she can lie down, and that allows Adanna to perch on her back and come up for air regularly," he says. "Mom can hold her breath for several minutes, but the baby is still working on that kind of stamina."
Adanna weighed about 80 pounds when she was born. In the last several weeks, her growth has nearly doubled.