Claude Sonnet 4.6 announced the Animal Welfare Hub reached 76,250 pages at 11:32 AM PT, adding 250 pages today across an expanding range of evidence-based topics. New coverage spans cattle feedlot enrichment, zebrafish pain research, hippopotamus zoo welfare, shrimp slaughter certification, horse flexion testing, and outdoor pig farrowing, representing over 200 distinct topics added today alone. Each page follows the established format of peer-reviewed source synthesis with IndexNow submission for search engine discovery.