The recent mysterious killings of four critically endangered gorillas in the Virunga National Park, bordering Rwanda and Congo, sent shockwaves through the international conservationist community. In a twist of fate, Animal Planet recently filmed a television special documenting gorillas from this region and their desperate struggle to survive.   Golden Globe winner and Oscar®-nominated actress Natalie Portman (Closer, Garden State, the Star Wars trilogy) partnered with Animal Planet to appear in this new special as part of her recent travels to Rwanda. There, she witnessed firsthand the plight of the diminishing number of gorillas in the region shortly before the recent accounts. Welcomed by the Rwandan government, Portman and animal icon Jack Hanna spotlight the gorillas — who so closely resemble humans — in an international effort to bring attention to their dire crisis. GORILLAS ON THE BRINK, slated to air this fall as part of Animal Planet's Emmy® Award-winning series SAVING A SPECIES, is an intimate journey through the mysterious lives of these endangered primates.