Twenty-five years of bestsellers on "fishes” science and welfare: from Peter B. Moyle’s and Chris Mari van Dyck’s Fish: An Enthusiast's Guide (1993) and Victoria Braithwaite’s Do Fish Feel Pain? (2010), to Jonathan Balcombe’s What a Fish Knows: The Inner Lives of Our Underwater Cousins, (2016). Review of Jonathan Balcombe’s book, What a Fish Knows: The Inner Lives of Our Underwater Cousins. Scientific American / Farrar, Straus and Giroux, 2016. (RI §419498)