Swimming with Legends 2014 ( 8.1)

A biographical documentary about the Belgian free-diver Fred Buyle and his art of silent diving.

Out in Nature: Homosexual Behaviour in the Animal Kingdom 2001 ( 6.8)

Can any of those who claim homosexuality is "unnatural" explain this beastly behaviour?

Cephalopods: The Reign of Suckers 2020 ( 8.7)