“Mission to the Unknown”, Scene 1, Kembel Jungle (Night)

On these albums

Doctor Who: The Daleks’ Master PlanTerry Nation & Dennis Spooner starring William Hartnell, Peter Purves & Adrienne Hill · 2001Soundtrack

Doctor Who: The Lost TV Episodes - Collection TwoVarious Artists · 2011

Source: MusicBrainz recording a96a4f50-bc4e-4241-b44a-4eaec0dc5543 (CC0).