Royal Society Publishing has recently published a theme issue of Philosophical Transactions B under the 'Subscribe to Open' 2026 initiative: Evolutionary genetics of mitochondria: on diverse and common evolutionary constraints across eukarya compiled and edited by Venkatesh Nagarajan-Radha, Duur K Aanen, Madeleine Beekman and Dan Mishmar and the articles are FREE to access at www.bit.ly/PTB1947 A print version is also available at the special price of �40.00 per issue fromsales@royalsociety.org Felicity Davie Royal Society Publishing T +44 20 7451 2647 The Royal Society 6-9 Carlton House Terrace London SW1Y 5AG http://royalsocietypublishing.org Registered Charity No 207043 Felicity Davie (to subscribe/unsubscribe the EvolDir send mail to golding@mcmaster.ca)