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Ernst Mayr
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51. Development of the Sanford Hall of Birds
Duration: 3 minutes, 8 seconds.
58
52. Invitation to become visiting professor at the University of Minnesota
Duration: 3 minutes, 29 seconds.
67
53. Preparing and marking exams
Duration: 2 minutes, 9 seconds.
121
54. Opposing views on evolution
Duration: 1 minute, 59 seconds.
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55. The stay in Seattle
Duration: 55 seconds.
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56. Getting a professorship at Harvard
Duration: 1 minute, 49 seconds.
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57. Teaching ornithology
Duration: 4 minutes, 16 seconds.
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58. The Bronx County Bird Club
Duration: 1 minute, 14 seconds.
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59. The Linnaean Society of New York
Duration: 2 minutes, 30 seconds.
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60. The American Ornithologists' Union
Duration: 3 minutes, 9 seconds.
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Teaching ornithology
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