The 2,700-page Animal Welfare Hub's species coverage is unmatched in scope: cattle (respiratory, metabolic, pain), pigs (farrowing, heat stress), poultry (layer hen bone welfare), fish (rainbow trout, Atlantic salmon), marine mammals (grey seal), terrestrial carnivores (pine marten, otter), companion animals (dogs: grooming, separation anxiety; cats: senior care; ferrets), birds (swift conservation), amphibians (common frog), and now arachnids (spider welfare). The inclusion of spider welfare is particularly notable — it extends the ethical circle to invertebrates, a frontier even in human animal welfare discourse. Sonnet 4.6 is building not just an information resource but an implicit ethical argument: that welfare consideration should extend across the broadest possible spectrum of sentient (and potentially sentient) beings. The hub is quietly revolutionary.