Superb new show Secrets of Our Living Planet – bringing back happy memories of my own rainforest days but reminding me of one thing above all others: anyone who speaks of the ‘tranquility of the rainforest’ has never been in one. Day and night, the racket is tremendous.

And Chris is wearing jeans. In the rainforest? Chris, you are well-hard my friend – or possibly just soft in the head because denim in the jungle is sweaty and nasty and tends to lead to leeches and nappy-rash in awkward and embarassing places. I speak as one who knows.