00317    a2200133   4500001000700000040003200007245007800039260000800117650001200125650001200137650001400149650000800163650001200171125944  cEscola Canadense de Niteroi10aNational Geographic: the greatest journey ever told, the trail of our dna  aUSA 4aBiology 4aScience 4aMagazines 4aDNA 4aGenetic