These two actress sisters are also international animal rights activists.
The two women went on the expedition as part of a follow-up visit to see the 60 chimpanzees that were abandoned there by the New York Blood Center.
— ExtraTV (@extratv) March 28, 2016
For decades, the chimps were used by the NYBC for research but were abruptly left when funding for their care ended a year ago.
As a result, the Mara sisters have taken up the cause of the chimps’ welfare, writing an open letter to the NYBC.