the most favoured or improved varieties will have been enabled to spread; there will have been much extinction of the less improved forms, and the relative proportional numbers of the various inhabitants of the reunited continent will again have been changed; and again there will have been a fair field for natural selection to improve still further the inhabitants, and thus to produce new species.
gutxi hobeturiko formetariko asko iraungi egingo ziren; eta berreraturiko kontinenteko biztanleen kopuru-erlazioak berriz aldatuko ziren, eta leku faboragarria gertatuko zen hautespen naturalak biztanleak areago hobetzeko eta era honetan espezie berriak sortzeko.