The US & N Korea Trade Nuclear Threats

North Korea says it is planning to fire four ballistic missiles near the US Pacific territory of Guam. For his part, the US Defence Secretary, James Mattis, said Pyongyang must stop its pursuit of nuclear weapons -- or face the end of its regime, and the destruction of its people.

The United Nations says fifty African migrants have been deliberately drowned by people smugglers off the coast of Yemen.

And we try to find out more about a thirteen-million-year-old fossil skull of a primate which could shed new light on the origins of humans.