Reproduction Among Mammals

Reproduction Among Mammals ERPI Classroom Films Inc. Horses grazing in shade of trees; Hereford cow w/ calf in field. Sheep & lambs in large pen; pigs in large fenced enclosure of weeds & sow & bore in pig pen. Animated diagram of pig reproductive system. Man at microscope & CU of slide of testes & cells. Animated diagram of cells dividing to produce sperm & then route through sperm ducts. Microscope slide & diagram. Female reproductive system in pig illustrated. 06:11:31 Organs laid out on blanket in CU w/ hands showing ovary, cross section under microscope. Diagram of egg growing in ovary; sperms in vagina shown on slide, then animated diagram. 06:12:58 Animated drawing of fertization. Fertilized egg shown speeded up & forming of ball of cells & development into layers. Diagram of movement into uterus. Nervous system developing in amphibian. 06:15:06 Pig embryo at 14 & 16 days in illustration. Amnion & yolk sac forming in diagram. Placenta shown in animation. Embryos in models shown of pig & human development. 06:17:57 Dissecting & cutting open pig uterus in CU. Animated drawing of pig birthing. Newborn pig around sow; seven suckling. Biology; Biological Science; Educational Film Lecture; Sexual Education;