We’re back at Chester Zoo for the second series of this fly-on-the wall documentary that uses the latest micro rigs to get right up close to the animals. And the humans, because the joy of series one was watching how the keepers and animals interacted. Tonight’s first episode is all about reproduction – or the lack of it in some cases.

Asiatic lion Iblis must pull out all the stops as his partner Kumari is losing interest in him, while new arrival Rico, a two-toed sloth, is also struggling with the ladies. Warthog dad Magnum couldn’t care less, though. He’s got enough on his plate coping with the stresses of parenthood.