Download or read book New Carnivorous Marsupials from the Deseado Formation of Patagonia written by William John Sinclair and published by . This book was released on 1930 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Partial Skeleton of Homalodontotherium from the Santa Cruz Beds of Patagonia and New Carnivorous Marsupials from the Deseado Formation of Patigonia written by William Berryman Scott and published by . This book was released on 1930 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Deseado Formation of Patagonia written by Frederic Brewster Loomis and published by . This book was released on 1914 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Fossil Vertebrates 1928 1933 written by Charles Lewis Camp and published by . This book was released on 1940 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolution of South American Mammalian Predators During the Cenozoic Paleobiogeographic and Paleoenvironmental Contingencies written by Francisco J. Prevosti and published by Springer. This book was released on 2018-01-02 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the evolution of carnivorous mammals in the Cenozoic of South America. It presents paleontological information on the two main mammalian carnivorous groups in South America; Metatheria and Eutheria. The topics include the origin, systematics, phylogeny, paleoecology and evolution of the Sparassodonta and Carnivora. The book is based on a wide variety of published sources from the last few decades.
Download or read book Proceedings of the eighth American scientific congress held in Washington May 10 18 1940 written by Paul Henry Oehser and published by . This book was released on 1941 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolution of the Borhyaenidae Extinct South American Predaceous Marsupials written by Larry G. Marshall and published by Univ of California Press. This book was released on 1978 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin of the American Museum of Natural History written by American Museum of Natural History and published by . This book was released on 1952 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprises articles on geology, paleontology, mammalogy, ornithology, entomology, and anthropology.
Download or read book Studies on the Structure of the Fish School written by Charles Marcus Breder and published by . This book was released on 1951 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: "One. The organization of a school of Jenkinsia is based on visual cues which become inoperative at just about the visual limit in man under certain conditions or before it under others. 2. Normally a school of Jenkinsia maintains a specified distance from solid vertical objects such as piles, and approaches twice as close to light-colored ones as to dark-colored. 3. The formation of a mill in Jenkinsia, typically based on extrinsic factors, may evidently under certain conditions be based on strictly intrinsic factors. 4. A mill of 3 feet in diameter of about 500 fish had members at the periphery traveling at about 3 inches per second. 5. Such a mill traveling around the wall of a circular tank traveled at the rate of about 1.4 feet per minute. 6. Individual fish near the center of a mill are more closely spaced than are those at its periphery. 7. A mill passing along a wall moves in a direction that a wheel would in rolling along a similar surface but with many more revolutions than a wheel would show without slipping. 8. Isolation of an individual or a small group for as short a time as a week will cause them to show reluctance to join a larger group. 9. Effects of weather such as rippled surface of the water or passing clouds tend to loosen the school, so that it is found in its most striking cohesive form close to the surface on days of clear skies and no wind. 10. Small differences in water temperature control the form and location of a school to a marked extent, certain isothermal lines acting as an effective barrier to the passage of such schools. 11. Within a school of somewhat mixed sizes there appears to be continual self-sorting, resulting in fish of the most nearly similar sizes being found together. 12. Aggressive behavior and aggregating tendencies are considered in theoretical terms in reference to school formation, simple aggregation, and solitary habits. 13. Further analytical suggestions are indicated with reference to future work extending to greater refinement of method than has been possible up to the present"--P. 25.
Download or read book Fossil Vertebrates in the American Museum of Natural History written by American Museum of Natural History. Dept. of Vertebrate Palaeontology and published by . This book was released on 1950 with total page 958 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Mammalogy written by and published by . This book was released on 1931 with total page 958 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The American Journal of Science written by and published by . This book was released on 1931 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geology Memoirs written by and published by . This book was released on 1930 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Geological Society of America for written by Geological Society of America and published by . This book was released on 1939 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: List of members.
Download or read book Special Papers written by and published by . This book was released on 1940 with total page 1116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Predators with Pouches written by Menna Jones and published by CSIRO PUBLISHING. This book was released on 2003-04-30 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Predators with Pouches provides a unique synthesis of current knowledge of the world’s carnivorous marsupials—from Patagonia to New Guinea and North America to Tasmania. Written by 63 experts in each field, the book covers a comprehensive range of disciplines including evolution and systematics, reproductive biology, physiology, ecology, behaviour and conservation. Predators with Pouches reveals the relationships between the American didelphids and the Australian dasyurids, and explores the role of the marsupial fauna in the mammal community. It introduces the geologically oldest marsupials, from the Americas, and examines the fall from former diversity of the larger marsupial carnivores and their convergent evolution with placental forms. The book covers all aspects of carnivorous marsupials, including interesting features of life history, their unique reproduction, the physiological basis for early senescence in semelparous dasyurids, sex ratio variation and juvenile dispersal. It looks at gradients in nutrition—from omnivory to insectivory to carnivory—as well as distributional ecology, social structure and conservation dilemmas.
