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Lesson summary for:
Understanding Macroevolution Through Evograms


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Evograms convey information about how a group of organisms and their particular features evolved. This article explains how to read evograms and delves into the evolutionary history of whales, tetrapods, mammals, birds, and humans.

UC Museum of Paleontology

Grade level:

30 minutes

Correspondence to the Next Generation Science Standards is indicated in parentheses after each relevant concept. See our conceptual framework for details.

  • Biological evolution accounts for diversity over long periods of time. (LS4.A, LS4.D)

  • Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry. (LS4.A)

  • The patterns of life's diversity through time provide evidence of evolution.

  • Features sometimes acquire new functions through natural selection.

  • An organism's features reflect its evolutionary history.

  • The fossil record provides evidence for evolution.

  • The fossil record documents the biodiversity of the past.

  • The fossil record contains organisms with transitional features.

  • There are similarities and differences among fossils and living organisms.

Teacher background:

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