AP BIOLOGY

Detailed explanation-1: -On his visit to the Galapagos Islands, Charles Darwin discovered several species of finches that varied from island to island which helped him to develop his theory of natural selection. He observed that the shape of the beak of the birds varied according to the type of food they consume.

Detailed explanation-2: -On his visit to the Galapagos Islands, Charles Darwin also discovered several species of finches that varied from island to island, which helped him to develop his theory of natural selection. Today, there are a total of 14 of which make up the group known as Darwin’s finches.

Detailed explanation-3: -Over time, Darwin began to wonder if species from South America had reached the Galapagos and then changed as they adapted to new environments. This idea-that species could change over time-eventually led to Darwin’s theory of evolution by natural selection.

Detailed explanation-4: -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.

Detailed explanation-5: -Darwin’s finches (also known as the Galápagos finches) are a group of about 18 species of passerine birds. They are well known for their remarkable diversity in beak form and function. They are often classified as the subfamily Geospizinae or tribe Geospizini.