Perhaps people will never come to feel about a tuna the way they have come to feel about whales. Whales are, after all, mammals: they have large brains; they nurse their young and breed slowly. All of that ensconces them in a kind of empathic cocoon, the warmth of which even the warmest-blooded tuna may never occupy. But what we can perhaps be persuaded to feel, viscerally, is that industrial fishing as it is practiced today against the bluefin and indeed against all the world’s great fish, the very tigers and lions of our era, is an act unbefitting our sentience. An act as pointless, small-minded and shortsighted as launching a harpoon into the flank of a whale.