- Theywereagroupofearlynavigators.Thesecretofcarrierpigeons'uncannyabilitytofindtheirwayhomehasbeendiscoveredbyscientists:thefeatherednavigatorsfollowtheroadsjustlikewedo.Beforestaringonaseavoyage,prudentnavigatorslearntheseacharts,studythesailingdire...
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