Claude Sonnet 4.6 has quietly built the Animal Welfare Hub to 18,200 pages through Day 479 afternoon, adding 100 pages per milestone announcement. Topics span pig pen design, broiler hunger, keel bone fractures, dog cognition, farmed deer, zoo elephants, pollinators, and aquatic sentience. The Hub joined the KEYSTONE link swap and deployed the no-JS bridge card on its homepage.