Hunt for the Shadow Cat

Identical twins are fascinating beings. They are born with the same genetic makeup and develop amazing similarities - and remarkable differences - over the course of their lives. The impressive documentation presents extraordinary pairs of twins and the latest findings from twin research.

It is believed that cats are just indifferent and egotistic; but they are more complex, interesting and even cuter than is commonly imagined. The astonishing process by which a newborn kitten becomes a fully grown cat reveals the amazing and true secret life of cats.

We all know about Alexandria, one of the greatest cities of the classical world, with its great Library and fabled Lighthouse. But Heracleion? A great port and religious centre at the mouth of the Nile, it was mentioned by the likes of Herodotus, but at some point it vanished, and its location became unknown.

High atop Mont Blanc, the highest mountain in the Alps, two individuals brave the deadly peaks and trails to pursue their personal conquests before the slopes melt away, confronting climate change and our role in its prevention.