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Darwin's finches (also known as the Galápagos finches) are a group of about 18 species of passerine birds. They are well known for their remarkable diversity in beak form and function. They are often classified as the subfamily Geospizinae or tribe Geospizini. They belong to the tanager family and are not closely related to the true finches.
Galapagos finch, distinctive group of birds whose radiation into several ecological niches in the competition-free isolation of the Galapagos Islands and on Cocos Island gave the English naturalist Charles Darwin evidence for his thesis that “species are not immutable.”
The Galápagos finches remain one of our world’s greatest examples of adaptive radiation. Watch as evolutionary biologists Rosemary and Peter Grant detail their 40-year project to painstakingly...
Visible Evidence of Ongoing Evolution: Darwin’s Finches. From 1831 to 1836, Darwin traveled around the world, observing animals on different continents and islands. On the Galapagos Islands, Darwin observed several species of finches with unique beak shapes.
Learn about the 17 endemic species of Darwin's finches, named after Charles Darwin, and their evolutionary history and conservation status. Find out how to identify them, where and when to see them, and how to help protect them.
26 de jun. de 2019 · Learn how Darwin's finches, a group of 14 different species endemic to the Galapagos Islands, helped Darwin formulate his theory of natural selection. Discover how their beaks adapted to different food sources and niches on the islands.
12 de nov. de 2021 · How did finches evolve different beak shapes to adapt to different food sources on the Galápagos Islands? A Harvard SEAS study combines evolutionary biology, geometry, dynamics and biomechanics to understand the growth, form and function of finch beaks.
