In this animated video, Professor Birdie explains the reproduction and development of insects. Insects a re oviparous, hatching from eggs while most animals are viviparous, born live. Viewers learn about univoltine, bivoltine, multivoltine insects; the stages of incomplete metamorphosis (eggs, nymphs and adults) and complete metamorphosis (eggs, larvae, pupae, and adults; moulting, , amphoteric reproduction, parthenogenesis and polyembryonic reproduction.