The Rise Of Placental Mammals
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The Rise Of Placental Mammals
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Author : Kenneth D. Rose
language : en
Publisher: JHU Press
Release Date : 2005-03-29
The Rise Of Placental Mammals written by Kenneth D. Rose and has been published by JHU Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-03-29 with Business & Economics categories.
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The Rise Of Placental Mammals
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Author : Sarah Laura Shelley
language : en
Publisher:
Release Date : 2018
The Rise Of Placental Mammals written by Sarah Laura Shelley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
The Rise Of Placental Mammals
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Author : Hans P. Puschel
language : en
Publisher:
Release Date : 2023
The Rise Of Placental Mammals written by Hans P. Puschel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with categories.
The Beginning Of The Age Of Mammals
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Author : Kenneth D. Rose
language : en
Publisher: JHU Press
Release Date : 2006-09-26
The Beginning Of The Age Of Mammals written by Kenneth D. Rose and has been published by JHU Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-09-26 with Business & Economics categories.
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The Rise Of Oxygen Over The Past 205 Million Years And The Evolution Of Large Placental Mammals
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Author :
language : en
Publisher:
Release Date :
The Rise Of Oxygen Over The Past 205 Million Years And The Evolution Of Large Placental Mammals written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Extinction And Radiation
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Author : J. David Archibald
language : en
Publisher: JHU Press
Release Date : 2011-03-15
Extinction And Radiation written by J. David Archibald and has been published by JHU Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-03-15 with Nature categories.
This study identifies the fall of dinosaurs as the factor that allowed mammals to evolve into the dominant tetrapod form. It refutes the single-cause impact theory for dinosaur extinction and demonstrates that multiple factors--massive volcanic eruptions, loss of shallow seas, and extraterrestrial impact--likely led to their demise. While their avian relatives ultimately survived and thrived, terrestrial dinosaurs did not. Taking their place as the dominant land and sea tetrapods were mammals, whose radiation was explosive following nonavian dinosaur extinction. The author argues that because of dinosaurs, Mesozoic mammals changed relatively slowly for 145 million years compared to the prodigious Cenozoic radiation that followed. Finally out from under the shadow of the giant reptiles, Cenozoic mammals evolved into the forms we recognize today in a mere ten million years after dinosaur extinction.
The Rise Of The Mammals
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Author : Michael J. Benton
language : en
Publisher: Crescent
Release Date : 1991
The Rise Of The Mammals written by Michael J. Benton and has been published by Crescent this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with History categories.
The Evolution Of The Mammal Placenta A Computational Approach To The Identification And Analysis Of Placenta Specific Genes And Micrornas
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Author : Thomas A. Walsh
language : en
Publisher:
Release Date : 2013
The Evolution Of The Mammal Placenta A Computational Approach To The Identification And Analysis Of Placenta Specific Genes And Micrornas written by Thomas A. Walsh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
The presence of a placenta is an important synapomorphy that defines the mammal clade. From the fossil record we know that the first placental mammal lived approximately 125 million years ago, with the chorioallantoic placenta evolving not long after. In this thesis a set of 22 complete genomes from Eutherian, non-Eutherian and outgroup species are compared, the aim being to identify protein-coding and regulatory alterations that are likely to be implicated in the emergence of mammal placenta in the fossil record. To this end we have examined the roles played by positive selection and miRNA regulation in the evolution of the placenta. We have identified those genes that underwent functional shift uniquely in the ancestral placental mammal lineage and that are also heavily implicated in disorders of the placenta. Carrying out a thorough analysis of non-coding regions of the 22 genomes included in the study we identified a cohort of miRNAs that exist only in placental mammals. Many of the placenta related genes described above have multiple predicted "placenta-specific" miRNA binding sites. Together these results indicate a role for both adaptation in protein-coding regions and emergence of novel noncoding regulators in the origin and evolution of mammal placentation.
The Rise And Reign Of The Mammals
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Author : Steve Brusatte
language : en
Publisher: Picador
Release Date : 2022-06-14
The Rise And Reign Of The Mammals written by Steve Brusatte and has been published by Picador this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-06-14 with Science categories.
The passing of the age of the dinosaurs allowed mammals to become ascendant. But mammals have a much deeper history. They – or, more precisely, we – originated around the same time as the dinosaurs, over 200 million years ago; mammal roots lie even further back, some 325 million years. Over these immense stretches of geological time, mammals developed their trademark features: hair, keen senses of smell and hearing, big brains and sharp intelligence, fast growth and warm-blooded metabolism, a distinctive line-up of teeth (canines, incisors, premolars, molars), mammary glands that mothers use to nourish their babies with milk, qualities that have underlain their success story. Out of this long and rich evolutionary history came the mammals of today, including our own species and our closest cousins. But today’s 6,000 mammal species - the egg-laying monotremes including the platypus, marsupials such as kangaroos and koalas that raise their tiny babies in pouches, and placentals like us, who give birth to well-developed young – are simply the few survivors of a once verdant family tree, which has been pruned both by time and mass extinctions. In The Rise and Reign of the Mammals, palaeontologist Steve Brusatte weaves together the history and evolution of our mammal forebears with stories of the scientists whose fieldwork and discoveries underlie our knowledge, both of iconic mammals like the mammoths and sabre-toothed tigers of which we have all heard, and of fascinating species that few of us are aware of. For what we see today is but a very limited range of the mammals that have existed; in this fascinating and ground-breaking book, Steve Brusatte tells their – and our – story.
Placental Mammals Of Australia
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Author : John Gould
language : en
Publisher:
Release Date : 1996
Placental Mammals Of Australia written by John Gould and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.