Phila. Zoo funds a program for the tamarin

The tiny primates – their old-man faces framed by manes of golden hair – scampered to the window to investigate the woman gazing at them.

If only they knew what she had done on their behalf.

The woman, Denise Rambaldi, heads a program in Brazil that has rejuvenated the golden lion tamarin, a squirrel-size primate that lives along the Atlantic Coast near Rio de Janeiro. Experts say the effort provides a blueprint for how to rescue a species.