Kate Middleton in Green at London's Natural History Museum

Kate Middleton wore a bright green Mulberry dress to attend a reception at London's Natural History Museum this evening. Kate also wore the peace-sign-adorned Mulberry dress to a private reception hosted by Queen Elizabeth II nearly a year ago to the day.

This evening, Kate attended the opening of the Treasures Cadogan Gallery. Kate was originally intended to go as the guest of Sir David Attenborough, a well-known broadcaster in the UK, but he was not able to attend. Instead, the Duchess of Cambridge got a tour of the new space from Michael Dixon, who is the director of the museum. Kate was treated to the viewing of many exciting objects, including a first edition of Charles Darwin's On the Origin of Species and dinosaur fossils.