[Answer] Why are the large finches now living on the Galápagos Islands different from the original source population from a nearby island?

Answer: All three answers are correct.
Why are the large finches now living on the Galápagos Islands different from the original source population from a nearby island?

The closest known relative of the Galápagos finches is the South American Tiaris obscurus. They were first collected by Charles Darwin on the Galápagos Islands during the second voyage of the Beagle. Apart from the Cocos finch which is from Cocos Island the others are found only on the Galápagos Islands .

One of the best-known is the Galápagos tortoise which lives on seven of the islands .It has an average lifespan of more than 150 years. The marine iguana is also extremely unusual since it is the only iguana adapted to life in the sea. Land iguanas lava lizards geckos and harmless snakes can also be found in the islands .The large number and range of birds is also of interest to scientists …

Galápagos wildlife – Wikipedia

Galápagos wildlife – Wikipedia

Isabela Island (Galápagos) – Wikipedia

Peter Raymond Grant FRS FRSC (born October 26 1936) and Barbara Rosemary Grant FRS FRSC (bo…

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