The only difference between organisms which annually produce eggs or seeds by the thousand, and those which produce extremely few, is, that the slow breeders would require a few more years to people, under favourable conditions, a whole district, let it be ever so large.
Alde batetik urtero milaka arrautza eta hazi sortzen dituzten organismoen eta bestetik oso gutxi sortzen dutenen artean dagoen alde bakarra ez da besterik astiro ugaltzen direnak aldeko baldintzetan eskualde oso bat betetzeko urte batzuk gehiago behar izatea baino.