Dear All, To celebrate the centennial of August Kroghs Nobel Prize in physiology, a special volume of Comparative Physiology and Biochemistry has been put together with a series of graphical reviews on animal physiology, including several om marine mammals that may be of interest to some of you. You can find them all here: https://www.sciencedirect.com/journal/comparative-biochemistry-and-physiolog... Enjoy and best Peter Zoophysiology, Department of Biology CF Mollers Alle 3, 8000 Aarhus C Aarhus University, Denmark www.marinebioacoustics.com<http://www.marinebioacoustics.com> https://www.facebook.com/MarineBioacoustics/