Under such circumstances the swiftest and slimmest wolves have the best chance of surviving, and so be preserved or selected, provided always that they retained strength to master their prey at this or some other period of the year, when they were compelled to prey on other animals.
Inguruabar hauetan, otsorik bizkorren eta argalenek izanen lituzkete bizirauteko eta horrela kontserbatu edo hautetsiak izateko aukerarik onenak, beti ere, urtaro honetan edo beste batean beste animalia batzuk harrapatu beharra dutenean, beren ehiziak menderatzeko indarra daukatela jorik.