VOICED: Last chance to save rare northern white rhino

It's perhaps the last chance for the northern white rhinos, one of the world's most endangered species. The herbivore once roamed central and eastern Africa, but was decimated by poachers and habitat destruction, and now only eight are left worldwide, all living in captivity. In a last-ditch attempt to ensure their survival, four have been moved from their home at a Czech zoo to a Kenyan wildlife reserve, in the hope of encouraging breeding -- either among themselves, or with the more plentiful southern white rhino. Prague, Czech Republic (Footage by AFPTV via Getty Images)