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The 13 species of finches in the Galápagos Islands evolved from a common ancestor that arrived from the mainland of South America. This adaptive radiation occurred as the finches colonized various islands, each facing different environmental conditions and food sources. Over time, natural selection favored specific traits, such as beak size and shape, allowing these finches to exploit different niches, leading to the development of distinct species. This process illustrates the principles of evolution and speciation in isolated ecosystems.

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What did Darwin observe about the finches on the Galapagos's islands?

That the finches were similar to the ones on the mainland, but had adapted to the island environment.


Explain how Ecuador's finches came to the Galapagos Islands?

The ancestor or ancestors of the finches on the Galapagos Islands arrived there most likely by being carried by the wind from the mainland of South America or Central America. These ancestors were of one species which evolved over time into 13 different species endemic to the Galapagos.


What did Charles Darwin observe about finches on the galapagos islands?

That the finches were similar to the ones on the mainland, but had adapted to the island environment.


WHAT SPECIFIC DIFFERENCES ABOUT THE FINCHES ON THE GALAPAGOS ISLANDS WERE OF GREAT INTEREST TO DERWIN?

The shapes of their beaks were different from mainland finches and they worked better to get the food they needed.


Why did Darwin say the finches on the galapagos islands were new specis of finches?

They could no longer reproduce with the finches from South America. A+. Tony B.


Where did the common ancestor of the galapagos finches originate?

the finches originally came from south American main land


What two animals was fascinating to Darwin?

The Galapagos finches and the Galapagos tortoises.


What bird Charles Darwin breed to test his theory?

Galapagos finches


Why are the finches in the Galapagos called Darwin's Finches?

Charles Darwin discover the finches in Galapagos in 1831. He noticed that the finches beaks were different compared to the finch's in Ecuador.


What puzzled Darwin about Galapagos finches?

Darwin was puzzled about the many adaptations of the finches on the Galapagos Islands


Where are finches found?

The Galapagos Islands.


Why did Peter and Rosemary Grant choose to study the Finches in the Galapagos What is so special about the finches?

The finches that Peter and Rosemary Grant chose to study the Finches in the Galapagos because they are hybrid.