Matt has been working again with his old friend and collaborator, Glenn Tattersall, on a review about the evolution of bird bills as thermoregulatory organs, which has been accepted by Biological Reviews, following some very nice comments by the reviewers (nice to know that the review process isn’t always painful!). It’s great to work on such an interesting topic that perhaps people don’t think too much about. Attending the ISBE meeting in Exeter in July, I was struck by the number of bird behavioural biologists who said “it’s never occurred to me that birds use their bills for that”. So if you are one of those people, this review is for you. You can find out more about the review here.