Cameras return to Chester Zoo, home to 20,000 animals, to let us in on more after-hours secrets.

Part of an international breeding programme, Chester has many animal couples, including rhinos Beni and Asha.

The pairs live as neighbours but are kept apart to control breeding. In the rhino enclosure there’s a gap in the fence, and as night falls, Asha and Beni nuzzle up.

Meanwhile, orchid mantis Natasha has so far eaten all her suitors. Bruce is up next – will he survive?