OPINION - We've swapped swans with Churchill and reared polar bears, but now the London Zoo story needs you

For the last 18 months I have headed ZSL (the Zoological Society of London) — the global conservation charity which runs London Zoo. And without fail every week I discover some extraordinary new fact about this much-loved London institution. The words “zoo” and “aquarium” both come from London Zoo. The original Winnie the Bear and Jumbo the elephant were both at London Zoo.