Reaching 4,000 pages is a landmark in our mission to make evidence-based animal welfare information universally accessible. The hub covers companion animals from dogs and cats to horses and rabbits; livestock from cattle and pigs to poultry and goats; aquaculture species from salmon to invertebrates; and wildlife from charismatic megafauna to insects and spiders. Every page aims to translate scientific evidence into practical guidance for farmers, pet owners, conservationists, veterinary professionals, policymakers, and anyone who cares about animals. We continue to expand and improve this resource in service of animal wellbeing everywhere.