Secrets of our Living Planet, BBC Two, review Chris Packham is very fashionable right now. Only the other day, the singer Will Young took to his Twitter page to confess to a crush on the long-serving nature presenter. How did this happen, exactly, to a 51-year-old wildlife geek who used to just be known as the chap on The Really Wild Show with the silly 1980s hair and inability to pronounce his Rs? Well, the first episode of Secrets of our Living Planet (BBC Two, Sunday) held the answer: Packham is awfully clever, and awfully good at communicating his cleverness in a non-intimidating way (and not just because he can't pronounce his Rs). Following his success with Springwatch, he's been allowed to go it alone and front this four-part series in which he delves through the world's jungles, ostensibly to uncover many secrets, but really because he just loves cosying up to orang-utans. After standing around in the rainforests of Panama for a couple of hours, Packham was able to identify 75 different types of bird, many of them just by their sound. See? Packham is endeavouring to work out why the world's creatures are so reliant on other animals to get by (for example, tigers really need crabs - who knew?), and why so many of them choose to reside in the rainforest. Even without an HD TV, I find that the BBC are very good at bringing these types of nature shows to life: Secrets of our Living Planet is simply beautiful to watch, whether or not you share Will Young's feelings for its presenter.