(1) The regulation of hatching behavior in oviparous animals is important for successful reproduction, but is poorly understood.

(2) In oviparous species, females can enhance reproductive success by investing in the size, quality, and number of eggs.

(3) In contrast, our experimental study of an oviparous species that does not have parental care is of considerable interest, as any observed family resemblance is likely to be less dependent on pre- and postnatal influences.

(4) In oviparous animals this can include prefertilization decisions such as the production of larger eggs and the deposition of hormones, such as the steroid testosterone, into yolks.

(5) Females are oviparous and broadcast spawn eggs in the water column as the male does sperm.

(6) Most catsharks have a system called single oviparity , in which an egg develops inside each oviduct and is deposited outside the female, remaining attached to the substrate until it hatches.

(7) By closely examining the nests of birds, we get a glimpse of solutions to the general problems associated with oviparity .

(8) Given the combination of oviparity , large clutch size, and large adult size, juveniles likely predominated in standing hadrosaur populations.