Featuring children who live alongside a secret population of dolphins in Ireland, a boy who prepares a nocturnal feast for a dozen foxes, and a colony of swing-wing, dive-bombing birds. Plus cheetahs, baby lemurs and insects that sting. With Michaela Strachan, Howie Watkins, Nick Baker and Janice Acquah.
(Repeated tomorrow at 7.55am on BBC2)
See Children: page 42