Dictionary of Human Evolution and Biology

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Morgan’s Canon

1. axiom postulated by British psychologist C. Lloyd Morgan (1852-1936) that the best theory is the simplest one that also accounts for all the known facts. Morgan’s canon was a restatement of Occam’s razor.

2. principle from the late nineteenth century that animal behavior should not be attributed to intention and forethought; animal behavior should be interpreted as the simplest action unless there is ample reason to consider otherwise. This was Lloyd Morgan’s reaction to the anthropomorphism of this time.

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