IniciGrupsConversesMésTendències
Cerca al lloc
Aquest lloc utilitza galetes per a oferir els nostres serveis, millorar el desenvolupament, per a anàlisis i (si no has iniciat la sessió) per a publicitat. Utilitzant LibraryThing acceptes que has llegit i entès els nostres Termes de servei i política de privacitat. L'ús que facis del lloc i dels seus serveis està subjecte a aquestes polítiques i termes.
Hide this

Resultats de Google Books

Clica una miniatura per anar a Google Books.

Across the Bridge : Understanding the Origin…
S'està carregant…

Across the Bridge : Understanding the Origin of the Vertebrates (2017 original; edició 2018)

de Henry Gee

MembresRessenyesPopularitatValoració mitjanaConverses
811,741,264No n'hi ha capNo n'hi ha cap
Our understanding of vertebrate origins and the backbone of human history evolves with each new fossil find and DNA map. Many species have now had their genomes sequenced, and molecular techniques allow genetic inspection of even non-model organisms. But as longtime Nature editor Henry Gee argues in Across the Bridge, despite these giant strides and our deepening understanding of how vertebrates fit into the tree of life, the morphological chasm between vertebrates and invertebrates remains vast and enigmatic. As Gee shows, even as scientific advances have falsified a variety of theories linking these groups, the extant relatives of vertebrates are too few for effective genetic analysis. Moreover, the more we learn about the species that do remain--from sea-squirts to starfish--the clearer it becomes that they are too far evolved along their own courses to be of much use in reconstructing what the latest invertebrate ancestors of vertebrates looked like. Fossils present yet further problems of interpretation. Tracing both the fast-changing science that has helped illuminate the intricacies of vertebrate evolution as well as the limits of that science, Across the Bridge helps us to see how far the field has come in crossing the invertebrate-to-vertebrate divide--and how far we still have to go.… (més)
Membre:AndreasJ
Títol:Across the Bridge : Understanding the Origin of the Vertebrates
Autors:Henry Gee
Informació:Chicago : University of Chicago Press, 2018.
Col·leccions:e-books
Valoració:
Etiquetes:biology, palaeontology

Detalls de l'obra

Across the Bridge: Understanding the Origin of the Vertebrates de Henry Gee (2017)

No n'hi ha cap
S'està carregant…

Apunta't a LibraryThing per saber si aquest llibre et pot agradar.

No hi ha cap discussió a Converses sobre aquesta obra.

We still speak of the majority of animals as "invertebrates", although we've long known that those creatures don't have anything in particular in common beyond not being vertebrates - in a sense, it would make as much sense to divide the animal kingdom into spiders and non-spiders.

Still, vertebrates are a remarkable group of animals for many reasons beyond the fact that they count our own species among their number, and their many distinctive traits - which along with the backbone itself include such less obvious things like the adaptive immune system - must somehow have arisen from invertebrate ancestors that lacked them. The task Gee has set himself is to sketch how that may have happened, helped by the substantial advances in molecular biology and the spectacular fossil finds of recent decades.

I found the book rather delightful. It quickly surveys the closest relatives of vertebrates and the most basal vertebrates as well as various relevant fossils, and tries to "cross the bridge" across the chasm between invertebrate and vertebrate by determining the order of acquisition of the essential vertebrate traits. At about 300 pages it necessarily skims over a lot, but plentiful further reading is suggested for the reader who wants to dive deeper into the palaeontology of armoured jawless fish or whatever.
4 vota AndreasJ | Nov 23, 2019 |
Sense ressenyes | afegeix-hi una ressenya
Has d'iniciar sessió per poder modificar les dades del coneixement compartit.
Si et cal més ajuda, mira la pàgina d'ajuda del coneixement compartit.
Títol normalitzat
Títol original
Títols alternatius
Data original de publicació
Gent/Personatges
Llocs importants
Esdeveniments importants
Pel·lícules relacionades
Premis i honors
Epígraf
Dedicatòria
Primeres paraules
Citacions
Darreres paraules
Nota de desambiguació
Editor de l'editorial
Creadors de notes promocionals a la coberta
Llengua original
CDD/SMD canònics

Referències a aquesta obra en fonts externes.

Wikipedia en anglès

No n'hi ha cap

Our understanding of vertebrate origins and the backbone of human history evolves with each new fossil find and DNA map. Many species have now had their genomes sequenced, and molecular techniques allow genetic inspection of even non-model organisms. But as longtime Nature editor Henry Gee argues in Across the Bridge, despite these giant strides and our deepening understanding of how vertebrates fit into the tree of life, the morphological chasm between vertebrates and invertebrates remains vast and enigmatic. As Gee shows, even as scientific advances have falsified a variety of theories linking these groups, the extant relatives of vertebrates are too few for effective genetic analysis. Moreover, the more we learn about the species that do remain--from sea-squirts to starfish--the clearer it becomes that they are too far evolved along their own courses to be of much use in reconstructing what the latest invertebrate ancestors of vertebrates looked like. Fossils present yet further problems of interpretation. Tracing both the fast-changing science that has helped illuminate the intricacies of vertebrate evolution as well as the limits of that science, Across the Bridge helps us to see how far the field has come in crossing the invertebrate-to-vertebrate divide--and how far we still have to go.

No s'han trobat descripcions de biblioteca.

Descripció del llibre
Sumari haiku

Dreceres

Cobertes populars

Valoració

Mitjana: Sense puntuar.

Ets tu?

Fes-te Autor del LibraryThing.

 

Quant a | Contacte | LibraryThing.com | Privadesa/Condicions | Ajuda/PMF | Blog | Botiga | APIs | TinyCat | Biblioteques llegades | Crítics Matiners | Coneixement comú | 157,775,977 llibres! | Barra superior: Sempre visible