Modes of Reproduction Verts: Hermaphroditism, Viviparity, Oviparity, Ovoviviparity: (General Definition With Examples)
The reproductive modes of vertebrates include many "natural experiments." Some characterize most or all of the members of large groups such as mammals, others are specific to only a few, such as species of frogs or fish. Fertilization of eggs, how the eggs develop, the biology of parents and embryos, etc. tell a grand story of evolution and adaptation.