| Description |
Presents a simple, scientific way of helping young people grasp the basic concepts of reproduction. Shows the event of sperm and egg of the sea urchin uniting and dividing. Illustrates, with the birth of a bat, how the early development of the young goes on inside the female. Contrasts mammalian reproduction with the lower animals which lay eggs. (WGBH-TV) Kinescope.
|
