Secret World of Sound (Season 1)

Secret World of Sound (2024) is a nature documentary you can watch online on iFILM, narrated by David Attenborough. It hands you a pair of ears the human body never came with.

Armed with ultra-sensitive microphones, the crew caught behaviour that always slipped past ordinary cameras. Baby crocodiles call to their mother before they even hatch. Lions and hyenas trade roars and shrieks in the dark. Fish hum underwater, and songbirds copy rival calls down to the smallest note. Across the series, sound is followed through an animal's whole life — birth, survival, the search for a mate.

Directed by Bridget Appleby, Rebecca Hart and Gemma Brandt and shot across Canada and the UK, the show skips the sweeping-landscape montage and digs into how creatures actually talk to one another. A good pick if you enjoy wildlife docs but want a fresh angle instead of another slow-motion hunt. Stream Secret World of Sound (2024) online on iFILM.