time rivers and seas appeared on the face of the earth and presently the waters teamed with living things these primitive creatures spawned in the pallies or a slime life has come down to us through the egg one after another during the course of the ages various forms of life uterine form of guest asian most highly developed in the mammals such as this cougar in this class of animals the development of the egg takes place fully in the dog confines of the mother's womb it is this mysterious prologue to life that we shall attempt to portray in this film the story of the adventures of the mammalian egg our which have come all the higher animals including mankind all the arm and all the food all of mankind who have lived in labelled on this planet since the beginning all have come from this microscopic egg many many times smaller than a mustard seed the story of this  beating silly of the very like structure at the end of the over the helps to direct the egg into the mouth of the orbiter above the time of year later and that is some time during the meeting period these follicles will models such as the cow the horse the monkey and man only one egg except in the occasional case of twins when there are two eggs so it is in the case of this sheet or any other animal  it is not easy to locate the tiny eggs that's discharged into the order but scientists have found that by washing out the rabbit over just some twenty four hours after i v lacing the eggs may be by taking a small syrian with wet solution and flushing out the overdubs the eggs can be washed out into a large glass these million eggs are so very tiny that three million of them will hardly feel a symbol and thus we must search for them with a microscope under the microscope they can be picked up with a suitable pipette and transferred to a small supply where we can observe the early divisions of the mammalian egg a couple glasses placed over the chamber so that the egg will not be injured and this is the important contribution of the male of the species the spermatozoa are shared by the male during mating appear like tiny little pigs or shall we say tadpole very active the squirming fellows notice the this diagram shows more clearly the details of this all important process of realization not the dog circle near the center of the egg this is the female pro nuclear embodying all the characteristics that the mother can this first division takes place about twenty four hours after meeting and after the first division the egg appears to rest in the two cells stage for three or four hours here is the same egg at twenty eight hours you will notice that again the granules in these two cells will appear to become greatly agitated just before division takes place this is characteristic of most things there one deal is divided and now the other cell divides for sale and then another rest period when little things do happen watch the sale at the law right hand corner it will be the first to divide again now about eight sales occupy this day not much rest for these young selves from now on that large cell in the lower right hand corner was very slow to divide hours behind its  that develops into a minute sailing and then there is itself in the womb where the egg develops a blood supply of its soul and takes its nourishment from the mother's blood until the embryo is ready to be b twenty two days have passed and now the young rabbits are well on their way to be born let's look into the mother rabbits womb slowly and carefully we do move for inspection the now  so we have proof of the truth that william harvey surmised and proclaim to a doubting world nearly three centuries ago all animals even those that bring forth their young alive and even man himself