but it certainly is not indispensable, as we see in the case of neuter insects, which leave no progeny to inherit the effects of long-continued habit.
baina, izatez, ez da ezinbestekoa, intsektu neutroen kasuan ikusten dugun moduan, hauek ez baitute luzaro irauniko azturaren ondorioak heredatuko dituen ondorengorik uzten.