Until becoming acquainted with these facts, I was unwilling to believe in the frequent early death of hybrid embryos; for hybrids, when once born, are generally healthy and long-lived, as we see in the case of the common mule.
Egitate hauek jakin arte, uzkur nengoen enbrioi hibridoak maiz goiz hiltzen direla sinestera; izan ere hibridoak, behin jaioz gero, osasuntsu eta bizitza luzekoak izaten dira, mando arruntaren kasuan ikusten dugun moduan.