A six-million-year-old jaw bone in Ethiopia proves to be a piece of the earliest hominid discovered-so far. Big Mama, who used a tree branch to escape from a zoo in Holland, is found sipping chocolate milk at a local restaurant. Nandy, a 50,000-year-old skeleton surrounded by flower pollen in Iraq, casts doubt on the beastly reputation of an early hominid. Found frozen in the Alps, tzi reveals what people in Europe ate 5,000 years ago. Ardipithecus...