What Caused The Change In The Finches Beaks As Seen In The Grants Study?

What Caused The Change In The Finches Beaks As Seen In The Grants Study? Darwin hypothesized that the Galapagos finches he observed had descended from a common ancestor. … Darwin proposed that natural selection had shaped the beaks of different bird populations as they became adapted to eat different foods. Why did the beaks of

What Did Darwin Observe In The Galapagos Islands?

What Did Darwin Observe In The Galapagos Islands? In Galapagos he found a remarkable population of plants, birds and reptiles that had developed in isolation from the mainland, but often differed on almost identical islands next door to one another and whose characteristics he could only explain by a gradual transformation of the various species.

What Happened To The Finches With Small Beaks?

What Happened To The Finches With Small Beaks? Smaller finches with less-powerful beaks perished. So the birds that were the winners in the game of natural selection lived to reproduce. The big-beaked finches just happened to be the ones favored by the particular set of conditions Nature imposed that year. Why did finches change beaks?