Annual Weigh-in At London Zoo

England Europe Great Britain London London Zoo Regent's Park UK United Kingdom ZSL Zoo Zoological Society of London animal animal welfare animals annual captivity giant Galapagos tortoise measurement measuring weigh in weigh-in weighing London United Kingdom zookeeper giant Galapagos tortoise weigh-in ZSL London Zoo annual event animal health vital statistics monitoring well-being August 19 2025 photocall WIktor Szymanowicz NurPhoto zoo keepers animal care Galapagos tortoise London Zoo animal welfare health check zookeeping wildlife conservation animal records tortoise weighing animal monitoring animal statistics zoological society animal health records zoo event animal well-being animal management.