hence, they must suffer habitually from some danger, for otherwise, from the number of eggs laid by all butterflies, they would in three or four generations swarm over the whole country.
beraz, maiz gertatu behar zaie arriskuren bat, bestela, tximeleta orok erruten duen arrautza piloa kontuan hartuz, hiru-lau belaunaldiren buruan multzoka ugalduko lirateke herrialde osoan zehar.