Seasons and episodes
1Season 1 Mar. 30, 2013
1 - 1Natural Selection Mar. 30, 2013
1 - 2Instinct Apr. 06, 2013
1 - 3Variation Under Nature Apr. 13, 2013
1 - 4Effects of External Conditions Apr. 20, 2013
1 - 5Conditions of Existence Apr. 27, 2013
1 - 6Variations Under Domestication May. 04, 2013
1 - 7Parts Developed in an Unusual Manner May. 11, 2013
1 - 8Entangled Bank May. 18, 2013
1 - 9Unconscious Selection May. 25, 2013
1 - 10Endless Forms Most Beautiful Jun. 01, 2013
2Season 2 Apr. 19, 2014
2 - 1Nature Under Constraint and Vexed Apr. 19, 2014
2 - 2Governed by Sound Reason and True Religion Apr. 26, 2014
2 - 3Mingling Its Own Nature with It May. 03, 2014
2 - 4Governed as It Were by Chance May. 10, 2014
2 - 5Ipsa Scientia Potestas Est May. 17, 2014
2 - 6To Hound Nature in Her Wanderings May. 24, 2014
2 - 7Knowledge of Causes, and Secret Motion of Things May. 31, 2014
2 - 8Variable and Full of Perturbation Jun. 07, 2014
2 - 9Things Which Have Never Yet Been Done Jun. 14, 2014
2 - 10By Means Which Have Never Yet Been Tried Jun. 21, 2014
3Season 3 Apr. 18, 2015
3 - 1The Weight of This Combination Apr. 18, 2015
3 - 2Transitory Sacrifices of Crisis Apr. 25, 2015
3 - 3Formalized, Complex, and Costly May. 02, 2015
3 - 4Newer Elements of Our Defense May. 09, 2015
3 - 5Scarred by Many Past Frustrations May. 16, 2015
3 - 6Certain Agony of the Battlefield May. 23, 2015
3 - 7Community of Dreadful Fear and Hate May. 30, 2015
3 - 8Ruthless in Purpose, and Insidious in Method Jun. 06, 2015
3 - 9Insolvent Phantom of Tomorrow Jun. 13, 2015
3 - 10History Yet to Be Written Jun. 20, 2015
4Season 4 Apr. 14, 2016
4 - 1The Collapse of Nature Apr. 14, 2016
4 - 2Transgressive Border Crossing Apr. 21, 2016
4 - 3The Stigmata of Progress Apr. 28, 2016
4 - 4From Instinct to Rational Control May. 05, 2016
4 - 5Human Raw Material May. 12, 2016
4 - 6The Scandal of Altruism May. 19, 2016
4 - 7The Antisocialism of Sex May. 26, 2016
4 - 8The Redesign of Natural Objects Jun. 02, 2016
4 - 9The Mitigation of Competition Jun. 09, 2016
4 - 10From Dancing Mice to Psychopaths Jun. 16, 2016
5Season 5 Jun. 10, 2017
5 - 1The Few Who Dare Jun. 10, 2017
5 - 2Clutch of Greed Jun. 17, 2017
5 - 3Beneath Her Heart Jun. 24, 2017
5 - 4Let the Children and Childbearers Toil Jul. 01, 2017
5 - 5Ease For Idle Millionaires Jul. 08, 2017
5 - 6Manacled Slim Wrists Jul. 15, 2017
5 - 7Gag or Throttle Jul. 22, 2017
5 - 8Guillotines Decide Jul. 29, 2017
5 - 9One Fettered Slave Aug. 05, 2017
5 - 10To Right the Wrongs of Many Aug. 12, 2017