But when a breed has been crossed only once by some other breed, the offspring occasionally show for many generations a tendency to revert in character to the foreign breed-some say, for a dozen or even a score of generations.
Baina edozein arraza beste batekin gurutzatu denean, ondorengoek noizbehinka arraza arrotzerantz gibelatzeko joera erakusten dute belaunaldi askotan, batzuen ustez dozena bat edo are hogeiren bat belaunalditan.