Dallas Zoo shock as lion kills lioness in front of visitors

Officials at a zoo in the US state of Texas are investigating why a male lion attacked and killed a lioness in full view of visitors. The male seized five-year-old Johari by the neck on Sunday at the Dallas Zoo - she was later found to have died from neck wounds and haemorrhaging. via Pocket http://www.bbc.co.uk/news/world-us-canada-24997004