LIFE SCIENCE

Detailed explanation-1: -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.

Detailed explanation-2: -All 18 species of Darwin’s finches derived from a single ancestral species that colonized the Galápagos about one to two million years ago. The finches have since diversified into different species, and changes in beak shape and size have allowed different species to utilize different food sources on the Galápagos.

Detailed explanation-3: -Charles Darwin developed what we now call “the theory of evolution by natural selection.” Darwin’s observations on the Galápagos Islands suggested that animals are well-suited for their specific environments.

Detailed explanation-4: -Galapagos finch, also called Darwin’s finch, distinctive group of birds whose radiation into several ecological niches in the competition-free isolation of the Galapagos Islands and on Cocos Island gave the English naturalist Charles Darwin evidence for his thesis that “species are not immutable.”

Detailed explanation-5: -Darwin studied bees and ants in his own garden. One of the reasons he may have held back from revealing his ideas about evolution was the problem of cooperation in social insects.