The Secret Life Of Thee Zoo,oo, 8p8pm,, CCh4

CHESTER ZOO is far from quiet when the gates close and the visitors leave. In fact, as many of the residents are nocturnal, they only become active when the lights go out. In this special episode, night-vision cameras capture what happens after dark,dark and features bats, mouse deer, aardvarks (pictured) and even the birth of a seahorse.