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@AmandaAskell 18-21 months. See Portmann (1969/1990), "Biologische Fragmente zu einer Lehre vom Menschen" [A Zoologist Looks at Humankind]. Discussed here: https://t.co/nJajB9TF8Y
@AmandaAskell 18-21 months. See Portmann (1969/1990), "Biologische Fragmente zu einer Lehre vom Menschen" [A Zoologist Looks at Humankind]. Discussed here: https://t.co/nJajB9TF8Y