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The finches were different species that shared a common ancestor
he studied finches iguanas and tortoises. :)
their beaks
Charles Darwin
the animal Darwin examined were finches on the Galapagos islands (at least finches were the main thing he studied)
a fancy pigeon and the finches
He mainly studied birds; finches were the main ones he studied.
different finch populations that appeared closely related Charles Darwin, while on the Galapagos Islands, studied finches and their beak structure as their ability to eat fruits, nuts and bugs.
Charles Darwin discover the finches in Galapagos in 1831. He noticed that the finches beaks were different compared to the finch's in Ecuador.
Adaptive radiation
he studied the differences in finches of the three galapagos islands.
Charles Darwin did. He studied finches and their apperence and noticed some of them looked different. He came to the therory that the finches evolved to fit there needs to survive in different habitats.