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Author: David Jacobs
Publisher: Juta and Company (Pty) Ltd
ISBN: 1775822125
Category : Science
Languages : en
Pages : 168
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Book Description
In Greek mythology, the chimera was a hybrid monster. Similarly, bats look like they have the body of a mouse, the face of a gargoyle or fox, and the wings of a pterosaur, giving rise to this book’s title. Evolution’s Chimera describes the amazing physical and behavioural adaptations of bats, using them to illustrate the processes of natural evolution. Bats comprise a quarter of all mammals in the world and are the only mammals that can fly. They occupy every landmass and almost every habitat on Earth. They make up the second-most diverse group of mammals on the planet, numbering more than 1 270 species. And they are among the oldest mammals. They are therefore ideal for the study of how evolution generates biological diversity. David Jacobs, an expert on bats currently researching animal evolution, gives an accessible account of evolution using bats as a case study, from adaptation, competition and evolutionary arms races to the role of sensory systems in the adaptation of species. He explores why bats hang upside down, why they are so small and the diversity of their diets, from insects to blood. Based on research done over the last 10 years this book provides a review of the latest research into evolution and biology, indicates what research still needs to be done and introduces new hypotheses for testing.
Author: David Jacobs
Publisher: Juta and Company (Pty) Ltd
ISBN: 1775822125
Category : Science
Languages : en
Pages : 168
Get Book Here
Book Description
In Greek mythology, the chimera was a hybrid monster. Similarly, bats look like they have the body of a mouse, the face of a gargoyle or fox, and the wings of a pterosaur, giving rise to this book’s title. Evolution’s Chimera describes the amazing physical and behavioural adaptations of bats, using them to illustrate the processes of natural evolution. Bats comprise a quarter of all mammals in the world and are the only mammals that can fly. They occupy every landmass and almost every habitat on Earth. They make up the second-most diverse group of mammals on the planet, numbering more than 1 270 species. And they are among the oldest mammals. They are therefore ideal for the study of how evolution generates biological diversity. David Jacobs, an expert on bats currently researching animal evolution, gives an accessible account of evolution using bats as a case study, from adaptation, competition and evolutionary arms races to the role of sensory systems in the adaptation of species. He explores why bats hang upside down, why they are so small and the diversity of their diets, from insects to blood. Based on research done over the last 10 years this book provides a review of the latest research into evolution and biology, indicates what research still needs to be done and introduces new hypotheses for testing.
Author: Julius Blair
Publisher: JB Comics
ISBN: 195729910X
Category : Comics & Graphic Novels
Languages : en
Pages : 27
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Book Description
A human chimera is a person whose body is composed of genetically distinct cells, as if they are from two different individuals. In Chimera Evolution, when a scientist tries to save his dying wife, he unwittingly causes supernatural abilities to be birthed into their twin children. He also discovers something that puts his whole family in danger, leading to tragic consequences. Now the twins are fully grown and seeking to uncover the dual mystery behind their extraordinary abilities and the tragic murder of their parents. However, they will soon learn that some secrets are not meant to be found out…
Author: Lynn Margulis
Publisher: MIT Press
ISBN: 0262015390
Category : Business & Economics
Languages : en
Pages : 349
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Book Description
Scientists elucidate the astounding collective sensory capacity of Earth and its evolution through time.
Author: Julius Blair
Publisher: JB Comics
ISBN: 1957299142
Category : Comics & Graphic Novels
Languages : en
Pages : 29
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Book Description
A human chimera is a person whose body is composed of genetically distinct cells, as if they are from two different individuals. In Chimera Evolution, when a scientist tries to save his dying wife, he unwittingly causes supernatural abilities to be birthed into their twin children. He also discovers something that puts his whole family in danger, leading to tragic consequences. Now the twins are fully grown and seeking to uncover the dual mystery behind their extraordinary abilities and the tragic murder of their parents. However, they will soon learn that some secrets are not meant to be found out?
Author: Lynn Margulis
Publisher: MIT Press
ISBN: 0262515830
Category : Science
Languages : en
Pages : 349
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Book Description
Scientists elucidate the astounding collective sensory capacity of Earth and its evolution through time. Chimeras and Consciousness begins the inquiry into the evolution of the collective sensitivities of life. Scientist-scholars from a range of fields—including biochemistry, cell biology, history of science, family therapy, genetics, microbial ecology, and primatology—trace the emergence and evolution of consciousness. Complex behaviors and the social imperatives of bacteria and other life forms during 3,000 million years of Earth history gave rise to mammalian cognition. Awareness and sensation led to astounding activities; millions of species incessantly interacted to form our planet's complex conscious system. Our planetmates, all of them conscious to some degree, were joined only recently by us, the aggressive modern humans. From social bacteria to urban citizens, all living beings participate in community life. Nested inside families within communities inside ecosystems, each metabolizes, takes in matter, expends energy, and excretes. Each of the members of our own and other species, in groups with incessantly shifting alliances, receives and processes information. Mergers of radically different life forms with myriad purposes—the "chimeras" of the title—underlie dramatic metamorphosis and other positive evolutionary change. Since early bacteria avoided, produced, and eventually used oxygen, Earth's sensory systems have expanded and complexified. The provocative essays in this book, going far beyond science but undergirded by the finest science, serve to put sensitive, sensible life in its cosmic context.
Author: Eckehard Schöll
Publisher: Frontiers Media SA
ISBN: 288963311X
Category :
Languages : en
Pages : 148
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Book Description
Author: Henry Joseph Folse (III.)
Publisher: Stanford University
ISBN:
Category :
Languages : en
Pages : 147
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Book Description
In the first chapter, we argue that an individual organism ought not to be defined in terms of genetic homogeneity, but rather by the evolutionary criteria of the alignment of fitness interests, the export of fitness due to interdependence for survival and reproduction, and adaptive functional organization. We consider how these concepts apply to various putative individual organisms, review the costs and benefits of intraorganismal genetic heterogeneity, and demonstrate that high relatedness is neither necessary nor sufficient for individuality. In the second chapter, we model the benefits and costs of genetic mosaicism for a long-lived tree in coevolution with a short-lived pest. We demonstrate benefits of mosaicism for trees at both the individual and population levels when somatic mutation introduces new defenses. In the third chapter, we develop a game theoretic model of the decision to reject or fuse with a potential partner in a colonial ascidian, based on weighing costs and benefits of fusion. We find that once fused, the interactions between cell lineages are cooperative in the soma, but competitive in the germline.
Author: J. Perry Gustafson
Publisher: Springer Science & Business Media
ISBN: 1468451375
Category : Medical
Languages : en
Pages : 363
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Book Description
One outstanding question in biology is the problem of devel opment: how the genetic instructions encoded in the DNA become expressed in the morphological, physiological, and behavioral features of multicellular organisms, through an ordered sequence of events that extend from the first cell division of the zygote to the adult stage and eventual death. The problem is how a one dimensional array of instructions is transformed into a four dimensional entity, the organism that exists in space and time. Understanding this transformation is, nevertheless, necessary for mastering the process of evolution. One hundred and twenty-five years after The Origin of Species, we have gained some understanding of evolution at the genetic level. Genetic information is stored in the linear sequence of nucleotides in the DNA. Gene mutations, chromosomal reorganiza tions, and a host of related processes introduce variation in the sequence and the amount of DNA. The fate of these variations is determined by interactions within the genome and with the outside environment that are largely understood. We have recently gained a glimpse of how the genome of eukaryotes is organized and will learn much more about it in the future, now that we have the research tools for it.
Author: Johannes Paulus Lotsy
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 96
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Book Description
Author: Jerry A. Coyne
Publisher: OUP Oxford
ISBN: 019164384X
Category : Science
Languages : en
Pages : 416
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Book Description
For all the discussion in the media about creationism and 'Intelligent Design', virtually nothing has been said about the evidence in question - the evidence for evolution by natural selection. Yet, as this succinct and important book shows, that evidence is vast, varied, and magnificent, and drawn from many disparate fields of science. The very latest research is uncovering a stream of evidence revealing evolution in action - from the actual observation of a species splitting into two, to new fossil discoveries, to the deciphering of the evidence stored in our genome. Why Evolution is True weaves together the many threads of modern work in genetics, palaeontology, geology, molecular biology, anatomy, and development to demonstrate the 'indelible stamp' of the processes first proposed by Darwin. It is a crisp, lucid, and accessible statement that will leave no one with an open mind in any doubt about the truth of evolution.
