In this episode of Round Planet, narrator Armstrong Wedgewood (Matt Lucas) explores a cast of island oddballs, each adapted to overcome the challenges of their remote habitat. The narration proves particularly challenging for Armstrong as he is joined in the recording booth by his disobedient dog, Barney (who also has strong opinions on the footage he sees.).

Originally released by BBC, 2016. Streaming video file encoded with permission for digital streaming by Infobase on May 22, 2019.

Natural Selection in Isolation (2:35); --Ring of Fire (4:15); -- Island Arachnid (2:19); -- Oviparity (2:27); -- Courtship Displays (4:48); -- Life on a Volcano (4:51); -- Bull Fight (5:18); -- Credits: Round Planet: Islands (0:33); .