A gorge is a very deep crevice between two mountains or hills, formed by rivers running through and eroding rock over a very long period of time. Here are a couple to take your breath away.

We’re talking stingers again! Despite being maligned and feared by many, hornets are far less hostile than so-called ‘social’ wasps – at least towards us humans. Some hornet lovers label our native European species ‘gentle giants’. But we also have Asian hornets in the PO. How do they differ and what’s the problem with them? Lesley McLaren explains.