Back in Britain, Darwin learned that all of the birds he had collected were variations of a single type. There were 13 different species.

What did Darwin learn about the birds?

1: Darwin’s Finches: Darwin observed that beak shape varies among finch species. He postulated that the beak of an ancestral species had adapted over time to equip the finches to acquire different food sources.

What was revealed about the birds Darwin collected from the Galapagos Islands?

Gould set aside his paying work and at the next meeting, on 10 January, reported that the birds from the Galápagos Islands that Darwin had thought were blackbirds, “gross-beaks” and finches were actually “a series of ground Finches which are so peculiar [as to form] an entirely new group, containing 12 species.” This

What did Darwin notice about the finches on the Galapagos Islands quizlet?

He noticed that the birds had different beaks in different parts of the island. He also noticed that tortises have different shells depending where they are.

What did Darwin realize about finches?

Eventually Darwin theorized that different species of finch had evolved on different islands, their distinctive beaks being an adaptation to distinct natural habitats or environmental niches.

What did Darwin’s finches teach us?

Darwin’s finches are particularly suitable for asking evolutionary questions about adaptation and the multiplication of species: how these processes happen and how to interpret them. All species of Darwin’s finches are closely related, having derived recently (in geological terms) from a common ancestor.

What does Darwin’s finches tell us?

Darwin’s finches, inhabiting the Galapagos archipelago and Cocos island, constitute an iconic model for studies of speciation and adaptive evolution. A team of scientists has now shed light on the evolutionary history of these birds and identified a gene that explains variation in beak shape within and among species.