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Especiación en tiempo real

Grade Level(s):

  • 9-12
  • 13-16
  • General

Source:

  • UC Museum of Paleontology

Resource type:

  • Evo in the News article

Time: 30 minutes

Overview

Generalmente, pensamos en la especiación como un proceso lento. Toda la evidencia disponible sostiene la idea de que diferentes especies evolucionaron desde ancestros comunes, y sin embargo, nuevas especies no aparecen a nuestro alrededor diariamente. Para muchos biólogos, esto implica que la especiación ocurre tan lentamente que es difícil observarla en escalas de tiempo humanas. Sin embargo, nuevas investigaciones sugieren que la especiación podria ser más fácil de observar de lo que pensamos.

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  • [Mechanisms of evolution: Grades 9-12] Speciation is the splitting of one ancestral lineage into two or more descendant lineages.
  • [Mechanisms of evolution: Grades 9-12] Speciation requires reproductive isolation.
  • [Mechanisms of evolution: Grades 9-12] Occupying new environments can provide new selection pressures and new opportunities, leading to speciation. (LS4.C)
  • [Mechanisms of evolution: Grades 13-16] Speciation is the splitting of one ancestral lineage into two or more descendant lineages.
  • [Mechanisms of evolution: Grades 13-16] Speciation requires reproductive isolation.
  • [Mechanisms of evolution: Grades 13-16] Occupying new environments can provide new selection pressures and new opportunities, leading to speciation.
  • Disciplinary Core Idea LS4.C: Adaptation

This article includes a set of discussion and extension questions for use in class, as well as a video podcast. It also includes hints about related lessons that might be used in conjunction with this one. Get more tips for using Evo in the News articles in your classroom.