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The Origin Of Species: The Beak Of The Finch

16 minutes

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Over the past four decades, evolutionary biologists Rosemary and Peter Grant have documented the evolution of the famous Galápagos finches. They track changes in body traits directly tied to survival, such as beak length, and identify behavioral characteristics that prevent different species from breeding with one another. Their pioneering studies have revealed clues as to how 13 distinct finch species arose from a single ancestral population that migrated from the mainland 2 million to 3 million years ago.

Media Details

Runtime: 16 minutes

The Origin of Species
Episode 1
31 minutes
Grade Level: 7 - 12
The Origin of Species
Episode 2
16 minutes
Grade Level: 7 - 12
The Origin of Species
Episode 3
18 minutes
Grade Level: 9 - 12