Ever seen a mountain gorilla at a zoo? Chances are if you have, you haven't really seen a gorilla. Behind glass, in a cage: That's not a gorilla. But witnessed in an equatorial forest, in Rwanda, say, or Uganda or the Democratic Republic of Congo, in its natural element: That's when the beauty, the majesty, the incredible intelligence of one of this planet's amazing primates can be experienced. Trouble is, there are fewer and fewer places to see them. Human encroachment, land loss and, sad to say, even murder, have decimated the species. ...