Download or read book Genetic Tools for Forensic Identification of Meat and Byproducts from the Alligator Snapping Turtle macroclemys Temminckii and Common Snapping Turtle chelydra Serpentina written by Joe Roman and published by . This book was released on 1996 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rhinos belong to everybody written by Bernhard Grzimek and published by . This book was released on 1964 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Intersexuality in the Animal Kingdom written by R. Reinboth and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: When Richard Goldschmidt' coined the term "intersexuality" in 1915, he intended it to apply to normally dioecious species which exhibit some kind of mixture between male and female characters. However, as knowledge of the bewildering variability present in the sexual orga nization of members of the animal kingdom has increased, the original meaning of the word has changed. Today many authors define inter sexuality as "the presence of both male and female characteristics, or of intermediate sexual characteristics, in a single individual".2 This more extensive and widely accepted concept justifies the title of our book •. Among all the anatomical and physiological features of living organisms the reproductive system has a unique importance for the perpetuation of the species. Conversely, reproductive processes are of little or no account for the viability of the individual. Therefore, within the framework of general biology reproduction has all too often been looked at solely from the point of view of genetics. Lively discussions about genotypic versus phenotypic sex determination long dominated the sci entific literature on sexuality in animals; this one-sided emphasis has tended to obscure many important facets of an organism's ability to reproduce. Recent developments in current biological research have brought the classic problem of sex differentiation into focus again, and the rapid progress being made in comparative endocrinology has added a new di mension to the study of reproductive biology.
Download or read book Grzimek s Animal Life Encyclopedia written by Devra G.. Kleiman and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides information on the evolution and systematics, physical characteristics, distribution, habitat, behavior, feeding ecology and diet, reproductive biology, and conservation status of five orders of mammals, each with species accounts.
