LONDON.- Celebrities, including Gavin and Stacey’s Mathew Horne, attended the preview event last night of Sexual Nature, the Natural History Museum’s new exhibition opening this Friday. Jameela Jamil, Tony Robinson and Martin Clunes explored amazing photography, film footage and intriguing specimens in the exhibition that examines the science behind sex. Sexual Nature takes a provocative look at the birds and the bees, from the eye-watering to the thought-provoking. Did you know that the barnacle’s penis measures up to 30 times its body length? Or that female choice has driven the development of male seduction technique? Ronnie Wood, Emily Maitlis and Charlie Boorman saw highlights of the exhibition including more than 100 specimens from the Museum’s vast scientific collections, many of which are on display for the first time. ‘The huge variety of specimens show the diversity of wonderful adaptations ani