05:26

Unit 2a Culture Shock

07:16

Unit 28 DNA Testing | With Sub

07:04

Unit 36 Mission to Mars | With Sub

06:58

Unit 5b Microcredit Changing Lives | With Sub

05:26

Unit 2a Culture Shock | With Sub 2

05:35

Unit 31 The Genius Within

05:39

Unit 1b What Causes a Society to Collapse | With Sub

05:03

Unit 1a What Can We Learn from the Past

05:03

Unit 1a What Can We Learn from the Past | With Sub

06:28

Unit 16 Ethics | With Sub

05:48

Unit 41 Marriage

05:48

Unit 41 Marriage | With Sub

06:37

Unit 40 The Fountain of Youth

06:37

Unit 40 The Fountain of Youth | With Sub

06:36

Unit 39 The Evolution of Money

06:36

Unit 39 The Evolution of Money | With Sub

05:53

Unit 38 Animal Communication

05:53

Unit 38 Animal Communication | With Sub

07:39

Unit 37 Big Brother and the Surveillance Society

07:39

Unit 37 Big Brother and the Surveillance Society | With Sub

07:04

Unit 36 Mission to Mars

05:50

Unit 35 The Science of Love

05:50

Unit 35 The Science of Love | With Sub

06:25

Unit 34 Memory

06:25

Unit 34 Memory | With Sub

06:37

Unit 33 The Art of Marketing in a Global Culture

06:37

Unit 33 The Art of Marketing in a Global Culture | With Sub

06:40

Unit 32 Social Status Flaunting Your Success

06:40

Unit 32 Social Status Flaunting Your Success | With Sub

05:35

Unit 31 The Genius Within | With Sub

07:12

Unit 30 Slang and Language Change

07:12

Unit 30 Slang and Language Change | With Sub

06:59

Unit 29 Risk Management

06:59

Unit 29 Risk Management | With Sub

07:16

Unit 28 DNA Testing

06:55

Unit 27 Principles of Journalism

06:55

Unit 27 Principles of Journalism | With Sub

06:49

Unit 26 Building Immunity

06:49

Unit 26 Building Immunity | With Sub

06:38

Unit 25 Frank Gehry

06:23

Unit 23 The Silk Road | With Sub

06:38

Unit 22 How We Each Learn Best

06:23

Unit 23 The Silk Road

06:52

Unit 24 Team Building | With Sub

06:52

Unit 24 Team Building

06:38

Unit 25 Frank Gehry | With Sub

07:10

Unit 18 Names | With Sub

07:10

Unit 18 Names

06:19

Unit 19 Global English | With Sub

06:19

Unit 19 Global English

06:46

Unit 20 Phobias

06:46

Unit 20 Phobias | With Sub

07:15

Unit 21 Owning a Successful Restaurant | With Sub

06:38

Unit 22 How We Each Learn Best | With Sub

07:15

Unit 21 Owning a Successful Restaurant

05:50

Unit 17 Opportunity Cost

05:50

Unit 17 Opportunity Cost | With Sub

06:28

Unit 16 Ethics

06:23

Unit 15 Shackleton

06:23

Unit 15 Shackleton | With Sub