Watch Series: The Secret Life of the Zoo Released in (2016) - Season 4 produced by UK, The TV Series categorized in Documentary, and content rating Documentary with duration 47 min broadcasted as these networks Channel 4, Streamed at Putlocker & directed by Pip Banyard. Chester Zoo is the most popular zoo in Britain. This observational documentary series uses micro-rig camera technology to capture, in incredible detail, the remarkable behaviour of the animals there. - Season 4