NGC travels the world in search of nature's oddest couples in a new installment of Unlikely Animal Friends. We'll take a fun-filled look at the astonishing relationships forged by otherwise rival species. At a wildlife rehabilitation center outside of Atlanta, Ga., a lion, a tiger and even a bear live in harmony. Meet a family who made room in their hearts and A LOT of room in their home for an orphaned hippopotamus! aka 'Unlikely Animal Friends 2'