In some species of sharks, babies hatch from shells within their mother's body. What is this behaviour an example of?

Question

Quizplus · Accepted Answer

Ovoviviparity is a mode of reproduction in which embryos develop inside eggs that are retained within the mother's body until they are ready to hatch. This is observed in some species of sharks where the babies hatch from shells within their mother, combining aspects of both oviparity (egg-laying) and viviparity (live birth).

In Some Species of Sharks, Babies Hatch from Shells Within