The game is penis fencing and the goal is to NOT get pregnant 😂⁣ ⁣ As Sir David Attenborough turns 100, revisit some of his memorable moments on BBC iPlayer. Head to bbc.co.uk/attenborough100 for the full collection. ⁣ ⁣ #TheMatingGame #AttenboroughAt100 #DavidAttenborough100 #DavidAttenborough #Flatworm⁣ ⁣ Finding a mate isn't just about love – the survival of an entire species could depend on it. Sir David Attenborough reveals spectacular scenes of courting and companionship in The Mating Game.