Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Convergent Evolution01:54

Convergent Evolution

27.7K
Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
27.7K
The Evidence for Evolution02:55

The Evidence for Evolution

42.7K
Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
42.7K
Speciation Rates01:07

Speciation Rates

21.2K
Overview
21.2K
Phylogeny01:23

Phylogeny

44.1K
Phylogeny is concerned with the evolutionary diversification of organisms or groups of organisms. A group of organisms with a name is called a taxon (singular). Taxa (plural) can span different levels of the evolutionary hierarchy. For instance, the group containing all birds is a taxon (comprising the class Aves), and the group of all species of daisies (the genus Bellis) is a taxon. Phylogenies can likewise include just one genus (i.e., depict species relationships) or span an entire kingdom.
44.1K
Synteny and Evolution02:31

Synteny and Evolution

3.3K
John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
3.3K
What is Evolutionary History?02:35

What is Evolutionary History?

36.5K
Scientists record evolutionary history by analyzing fossil, morphological, and genetic data. The fossil record documents the history of life on Earth and provides evidence for evolution. However, both fossil and living organisms offer evidence that outlines Earth’s evolutionary history.
36.5K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

The digital biodiversity revolution.

The New phytologist·2026
Same author

Clade-specific drivers of rapid vertebral evolution in squamate reptiles.

Evolution; international journal of organic evolution·2026
Same author

Repurposing Coriandrum sativum L. powder into bifunctional graphene oxide decorated biochar material for efficient removal of emerging pollutants and sensing of uranyl ions.

Bioresource technology·2026
Same author

On misidentification of metacercariae of <i>Posthodiplostomum minimum</i> (MacCallum, 1921) Dubois, 1936, in Nearctic minnows.

Journal of helminthology·2026
Same author

An expanded species-area perspective on helminth diversity and infection load in lizards: A phylogenetic comparative approach.

Journal of helminthology·2026
Same author

Ecological and Historical Correlates of Taxonomic, Phylogenetic, and Functional Diversity of Amphibians in South American Rainforests and Savannas.

Ecology and evolution·2026
Same journal

Erratum for the Research Article "Detecting supramolecular organic nanoparticles during heat wave".

Science (New York, N.Y.)·2026
Same journal

Local signals, systemic decline.

Science (New York, N.Y.)·2026
Same journal

The mechanics of liver regeneration.

Science (New York, N.Y.)·2026
Same journal

Computing in a memory with physics.

Science (New York, N.Y.)·2026
Same journal

Retraction.

Science (New York, N.Y.)·2026
Same journal

Making time.

Science (New York, N.Y.)·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: Jul 2, 2025

Chemical Isolation, Quantification, and Separation of Skin Lipids from Reptiles
07:55

Chemical Isolation, Quantification, and Separation of Skin Lipids from Reptiles

Published on: February 7, 2019

11.0K

La singularidad macroevolucionaria de las serpientes

Pascal O Title1,2,3, Sonal Singhal3,4, Michael C Grundler3

  • 1Department of Ecology and Evolution, Stony Brook University, Stony Brook, NY 11794, USA.

Science (New York, N.Y.)
|February 22, 2024
PubMed
Resumen
Este resumen es generado por máquina.

Las serpientes y los lagartos (Squamata) muestran notables adaptaciones evolutivas. Su diversificación, particularmente en las serpientes, ha remodelado los ecosistemas a través de estrategias depredadoras especializadas, impactando la biodiversidad de los vertebrados.

Más Videos Relacionados

Using Enclosed Y-Mazes to Assess Chemosensory Behavior in Reptiles
06:15

Using Enclosed Y-Mazes to Assess Chemosensory Behavior in Reptiles

Published on: April 7, 2021

5.6K
Microinjection for Transgenesis and Genome Editing in Threespine Sticklebacks
08:51

Microinjection for Transgenesis and Genome Editing in Threespine Sticklebacks

Published on: May 13, 2016

14.0K

Videos de Experimentos Relacionados

Last Updated: Jul 2, 2025

Chemical Isolation, Quantification, and Separation of Skin Lipids from Reptiles
07:55

Chemical Isolation, Quantification, and Separation of Skin Lipids from Reptiles

Published on: February 7, 2019

11.0K
Using Enclosed Y-Mazes to Assess Chemosensory Behavior in Reptiles
06:15

Using Enclosed Y-Mazes to Assess Chemosensory Behavior in Reptiles

Published on: April 7, 2021

5.6K
Microinjection for Transgenesis and Genome Editing in Threespine Sticklebacks
08:51

Microinjection for Transgenesis and Genome Editing in Threespine Sticklebacks

Published on: May 13, 2016

14.0K

Área de la Ciencia:

  • Biología evolutiva
  • Zoología
  • Ecología

Sus antecedentes:

  • Las escúmadas (serpientes y lagartos) comprenden una porción significativa de los vertebrados terrestres.
  • Muestran diversas innovaciones en la locomoción, la alimentación y los sistemas sensoriales.
  • Los impulsores evolutivos detrás de su radiación no se comprenden bien.

Objetivo del estudio:

  • Investigar las causas y consecuencias de la macroevolución de los escamados.
  • Para entender la historia evolutiva y los patrones de diversificación de las serpientes y lagartos.

Principales métodos:

  • Utilizó observaciones de historia natural basadas en individuos de más de 60,000 animales.
  • Construyó una filogenia calibrada en el tiempo utilizando datos genómicos de 1018 especies (5400 loci).

Principales resultados:

  • Cambios identificados en la especiación y la dinámica de la evolución fenotípica en las serpientes.
  • Se ha demostrado el origen recurrente y la diversificación de estrategias depredadoras especializadas en las serpientes.
  • Mostró cómo las serpientes han transformado las estructuras tróficas en las comunidades animales.

Conclusiones:

  • La biodiversidad de los escamados está moldeada por la contingencia histórica y la evolución temprana de las serpientes.
  • Los eventos evolutivos singulares en las serpientes han tenido un profundo impacto en la biodiversidad de los vertebrados.