What was Darwin able to tell by looking at the different types of finch beaks?

Answer 1

A bird's beak is a tool adapted for survival. Darwin's finches provide a classic example of divergence among closely related species. Each species has evolved its own beak design variation. Some finches have adapted thick, heavy beaks for cracking big seeds; others have tiny, pointy beaks for cracking small seeds or probing flowers and cacti. The woodpecker finch even uses twigs to dig insects out of wood.

Answer 2

There were several types of observations that particularly impressed Darwin as fitting in with idea. One was that there was a gradual change in each species as he traveled down the Coast of South America.For example,the ostrichlike rheas that live latitudes around Buenos Aires are different from those found at the tip of South America. They were not the same as any of the living animals he observed. On the other hand,they had many similarities that suggested they might be related to modern forms. The most significant of Darwin's observation,however,were those he made on the Galapagos Island,he found that there were many different species of finches living on this island. These birds were very much alike,yet each species was slightly different from those on the next island or in another part of the same island. Darwin made similar observation about plants,insects,and other organisms. However,because of their isolation on the islands,the species had the oportunities to developed special adaptations to each different region

Answer 3

he discovered that on certain islands the beaks of the finches were different, he believed that the beaks of these animals had changed due to their environment. on one island he found a Finch with a long thin beak and on another island he found a finch with a fat short beak. he came to the conclusion that there was variation in the species because they had evolved to best fit their environment.

Answer 4

His theory was a single species of finches arrived on the Galapagos Islands, the finches spread to all the islands and over many generations their beaks changed shape to suit the local environment of each island, so on each island the finches had different beak shapes.

Answer 5

Actually he didn't have one. The super myth is that Darwin's theory of evolution crystallized when he saw the different beaks on finches in the Galapagos Island. He didn't pay much attention to them and mis labeled many of his samples of the birds. His theory came from years of studies of creatures from small invertebrates, to plankton, to insects and then the collection of large extinct mammal fossils. It was paired with a knowledge of geology and how the earth has evolved as an environment upon which every living thing has existed upon.

Answer 6

Actually he didn't have position on this matter of the finches. The super myth is that Darwin's theory of evolution crystallized when he saw the different beaks on finches in the Galapagos Island based on their beak shapes. In truth he didn't pay much attention to them and mis-labeled many of his samples of the birds.

His theory came from years of studies of creatures from small invertebrates, to plankton, to insects and then the collection of large extinct mammal fossils. It was paired with a knowledge of geology and how the earth has evolved as an environment upon which every living thing has existed upon. Later scientists drew the conclusions about the finches.

Answer 7

For different uses. The pelican has a beak that expands downward so it can net fish while in the water. most other birds have pointed beaks to pierce fruit. etc

Answer 8

There were variations in the beaks already.

Answer 9

They are adapted to other enviroments.So they will adapt and get different organism.

Answer 10

How they have developed but mainly because they eat different food, e.g not all birds will eat the same seeds, if they eat certain nuts need a certain beak to crack open