Model, Embryo Development of Common Frog, (Rana temporaria), 12 Stages, the various stages of development of an embryo, cleavage (morula and blastula), gastrulation, neurula and organogenesis enlarged 30 times, Dimensions: 37 x 36 x 13 cm, weight: 1.73 kg
Model, Labor Stages, mounted individually bases: Fetus in womb, cervix closed, Fetus in womb, cervix open, Fetus in womb, start of head passage, Fetus in womb and pelvis, finish of head passage, Placenta in the womb, Dimensions: 40 x 31 x 13 cm, weight: 2 kg
Praying Mantis Life Cycle Stages, Children can see how Praying Mantises change as they grow with Insect Lore’s Praying Mantis Life Cycle Stages. Four stages of Mantis development: Soft Egg Case, Hardened Egg Case, Nymphs and Adult Praying Mantis.