A long postreproductive life span is a shared trait among genetically distinct killer whale populations. - Nielsen, Mia Lybkær Kronborg; Ellis, Samuel; Towers, Jared R.; Doniol‐Valcroze, Thomas; Franks, Daniel W.; Cant, Michael A.; Weiss, Michael N.; Johnstone, Rufus A.; Balcomb, Kenneth C.; Ellifrit, David K.; Croft, Darren P. (Ecology & Evolution (20457758), 2021)