by Welkin John­son — As bi­ol­o­gists, we divvy the bi­o­log­i­cal realm up into do­mains us­ing a for­mula that frankly, smacks of nepo­tism, be­stow­ing three glo­ri­ous do­mains upon our clos­est relatives—the Eu­cary­ota, the Ar­chaea, and the Bacteria—while com­mit­ting an in­jus­tice to the so-called viruses, lump­ing them to­gether in a mis­cel­la­neous catch-all cat­e­gory…