For decades, scientists have estimated that the Siberian unicorn -- a long-extinct species of mammal that looked more like a rhino than a horse -- died out some 350,000 years ago, but a beautifully preserved skull found in Kazakhstan has completely overturned that assumption.

The most striking example of how poorly the zoo is now being managed is seeing a sheep giving company to a lonely rhino. You can also see a deer as a companion to a lonely Bhutanese cow. In short the zoo looks like a place where all animals are kept to die quickly.

A North Korean diplomat has been expelled from South Africa for illegal rhino horn trading, according to a spokesman for South Africa's Department of International Relations.

One of the last five Northern White Rhino left in the world dies.