Uploaded May 2026 | Updated September 2026, 3 weeks ago

---

Long before the Planet Earth documentaries we all know and love, Sir David Attenborough was in the Ri Theatre showing children things they'd never forget. This clip is from his 1973 Royal Institution Christmas Lectures — The Languages of Animals — and it holds up. Today he turns 100. 🎂

Watch the full lectures free on our channel. #Attenborough #Bioluminescence #RoyalInstitution #Science