大象传媒

The opposition candidate won the presidential election in Nigeria .. and the sitting president acknowledged defeat. It's the first time power has changed hands peacefully and democratically in Nigeria -- which has Africa's biggest population and biggest economy. The new man -- a former army general -- has official corruption and the Islamist militants of Boko Haram in his sights.

Also in this podcast: Iran and the West pull off the deal some people thought could never happen, over Iran's nuclear programme -- though there are still plenty of details to fill in; so-called Islamic State attacks a big refugee camp on the outskirts of Damascus; why some cows in India are having their photograph taken; and the British general election campaign in one minute (and a bit).