These latter, when the warmth returned, would return to their former homes, leaving some few species on the mountains, and carrying southward with them some of the northern temperate forms which had descended from their mountain fastnesses.
Azken hauek, berriro bero egiten hasi zenean, beren lehengo lekuetara itzuliko ziren, espezie bat edo beste mendietan utziz, eta mendiko gordelekuetatik jaitsiriko iparreko klima epeletako espezie batzuk berekin batera hegorantz era-manez.