Temporada1EpisodioE1Ways of Being Male1 jun 1999·30mE2Choosy Females13 ene 1999·30mE3Race for the Egg20 ene 1999·30mE4The Parental Dilemma27 ene 1999·30mE5Family Affairs3 feb 1999·30mE6The Riddle of Sex5 feb 1999·30mAdd to My ListCompartirPlayback issues? Try another server.Server 1Server 2Server 3Server 4Server 5Server 6Server 7Server 8Server 9Server 10Server 11Server 12Server 13Server 14Server 15Battle of the Sexes - In the Animal World19999DocumentaryEstreno01 jun 1999PaísReino UnidoThe sexual behaviour and intriguing reproductive strategies of the animal world.