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Over the past four decades, biologists Rosemary and Peter Grant have documented the evolution of the famous Galápagos finches
Over the past four decades, evolutionary biologists Rosemary and Peter Grant have documented the evolution of the famous Galápagos finches by tracking changes in body traits directly tied to survival, such as beak length, and identified 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.
- The Origin of Species: The Beak of the Finch | HHMI BioInteractive
- Effects of Natural Selection on Finch Beak Size | HHMI BioInteractive
- Evolution in Action: Data Analysis | HHMI BioInteractive
- Sorting Finch Species | HHMI BioInteractive
- Natural Selection and the Evolution of Darwin's Finches | HHMI BioInteractive
- Beak of the Finch Film With Quiz | HHMI BioInteractive
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