There are 13 species of Darwin’s finches on the Galapagos islands. They have many similar features, but different in big size and shape. Which explanation counts for these characteristics.?

The explanation for these characteristics is likely to be divergent evolution. Divergent evolution occurs when a single ancestral species gradually diverges into multiple different species over time, typically due to the adaptation to different environmental conditions or niches. In the case of Darwin's finches, the variation in size and shape among the 13 species is likely a result of each species adapting to different food sources or habitats on the Galapagos Islands.