reproduction

The development of a chick embryo.

Easy-to-read science text traces the fertilization of the egg and the growth and hatching out of the chick.

Takes the viewer "from the moment of conception when egg and sperm meet through the remarkable journey that ends with the magic of birth"--Container. (30 min.).

Describes briefly the male and female reproductive system, the union of the sperm and ovum, and the stages in the development of the baby in the womb.

Photographic presentation of what happens inside the chicken egg during its twenty-one day incubation period.

Discusses sex in the natural world, including mating behavior, variety in nature, and courtship rituals.

Animal stories illustrate the steps in reproduction from intercourse to the birth of a child. A separate section gives sample answers parents may give to their childrens's questions.

Explores the evolutionary advantages and risks of sexual vs. asexual reproduction, and offers scientific theories and evidence that attempt to explain why we reproduce sexually. Also, covers the effects on genetic diversity and the definition of sexual selection.

Rhyming verse and colorful illustrations depict various birds, animals, and insects who lay eggs.