In episode four, Lucy Cooke heads to an Alpaca farm where she helps with some complicated deliveries, and she meets the woman who has over 300 guinea pigs and our cameras capture the latest new arrivals being born.

In the last of the series, Lucy Cooke meets Carron the Shire horse as she becomes a mum for the ninth time, and at Blackpool Zoo, we meet lioness Rachel as she becomes a mum against all odds for the first time.