fecundation

Scarcely has the fecundation been finished when the ogress turns, leaping, and devours the suitor on the very spot of his amours.

Those which live under water during the time of fecundation, raise their flowers above the surface.

In Asterias glacialis the most favourable period for fecundation is about an hour after the formation of the female pronucleus.

The distinction between male and female characteristics appears to be determined before the fecundation of the ovum.

Fecundation, according to Roth, would at once be effective in determining the sex of the future individual.