Reproduction in Higher Life Forms

Duration: 15 min

Genre: Reproduction, Evolution

Creator: Science of Life

Format: 16mm

Color: B&W

Sound: Silent

Description: Brief review of cell division (pleurococcus). Differentiation of function (gastrula). In the fishes, the young already depend on food supply obtained from parent (salmon spawning process). In reptiles fertilization occurs within body of female. Turtles incubate eggs in warm sand, chickens under warm feathers. Chick embryo. Independence of blood system in mammals, feeding by osmosis.

Metadata Source:Bell & Howell Filmosound Library Catalog of Educational Motion Pictures, 1942