500km trek

Elephants' 500km-trek across China baffles scientists

And yet a herd of endangered elephants in China has completely dumfounded scientists globally, while captivating an entire nation in the process.

It's not unusual for elephants to move small distances. But this herd has been lumbering its way across China for more than a year now. The elephants have now strayed almost 500km (310 miles), a mammoth trek from their original habitat.

It's thought that they started their journey last spring from Xishuangbanna National Nature Reserve in the southwest of the country, near the border with Myanmar and Laos.