In THE ZOO, the celebrated London Zoo finally opens its doors to television cameras, allowing unprecedented, captivating access to one of the world's oldest menageries. The Zoo's team of keepers and specialists guide viewers through the daily responsibilities involved with caring for their 15,000 animals, including routine feedings, teeth cleanings, autopsies and more. It's the animals, though, that are the documentary's real stars. The average day depicted in THE ZOO explores a gamut of emotions, from birth to death and from tragedy to joy.