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Animal Adaptations: Evolution of Forms and Functions

 
R. K. Saxena (Author) Sumitra Saxena (Author)
Synopsis

The book animal Adaptations explores the most fascinating and bizarre types of adaptations acquired by animals which have helped them to live comfortably in the harsh and most hostile environments. Firstly these adaptations refer to the evolutionary mechanisms that have produced them and they secondly refer to the traits that enhance the survival and reproductive success of their bearers. These adaptations have been randomly chosen and discussed by the authors to instill inquisitiveness and interest in the minds of students. No doubt the acquired adaptations impose costs as well as benefits, and the evolution of adaptations depends on the trade-off between those costs and benefits. Determining the costs and benefits of these adaptations is no doubt difficult because individuals differ not only in the degree to which they possess the adaptation, but also in many other ways. It is true that natural selection is instrumental in selecting and preserving these beneficial adaptations in the population and discarding harmful ones.

Contents: Preface. 1. Heterochrony. 2. Origin, ancestry and evolution of chordate. 3. Origin and ancestry of mammals. 4. Primates and origin of Homo Sapiens. 5. Homeostasis. 6. Parthenogenesis, reproduction and parental care. 7. Aerodynamics and flight in animals. 8. Migration. 9. Echolocation. 10. Interspecific interaction. 11. Behavior. 12. Cryptobiosis. 13. Coral Reefs. 14. Mimicry, camouflage and colouration. 15. Polymorphism. 16. Bioluminescence. 17. Biological clocks and circadian rhythms. 18. Electric organs. 19. Sense organs. 20. Sound communication. 21. Weberian ossicles. 22. Spider webs. Glossary. Index.

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About the author

Sumitra Saxena

Dr. Sumitra Saxena, at present is a Associate Professor at S.G.T.B. Khalsa College, University of Delhi where she has been teaching for the last 35 years. She has to her credit several research publications in the field of cell and molecular biology.

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Bibliographic information

Title Animal Adaptations: Evolution of Forms and Functions
Format Softcover
Date published: 25.07.2015
Edition 1st. ed.
Publisher Viva Books
Language: English
isbn 9788130930121
length 504p., Tables; Figures