Originally published in 1914, this book contains a study of the causes that lead to the appearance of males and females in a number of species, including humans. Doncaster uses simple language to appeal to a non-specialist audience, and the text is illustrated with a number of plates illustrating the differences between the sexes in insects, birds and mammals. This book will be of value to anyone with an interest in the history of science.
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and...
This book is the first to report that research in allogenics/xenogenics has conclusively shown that fishes have retained bisexual potency even after sexual maturity and spermiation. The XY genotype...
Upon wresting the control of the earth from the Titans, Zeus assigned the task of creating living creatures to two Titan brothers who had sided with him in the epic battle just concluded. Because...