LONDON -- An American scientist and her young son were fighting for their lives Friday in a South African hospital after being attacked by a giraffe at the wildlife reserve in South Africa where they live. Dr. Katy Williams, 35, and her son Finn, 3, were attacked by the female giraffe close to their home on the Blyde Wildlife Estate near Hoedspruit on Monday. Williams' British husband, Dr. Sam Williams, 36, came back from a run on the estate to find his wife and child being trampled and was able to chase the animal away. A lawyer for the family,...