LIFE SCIENCE

Detailed explanation-1: -Darwin also observed giant tortoises on the Galápagos (Figure below). These tortoises were so large that two people could ride on them. Darwin noticed that different tortoise species lived on islands with different environments.

Detailed explanation-2: -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.

Detailed explanation-3: -Galapagos Islands Darwin studied the geology of the region along with giant tortoises that were indigenous to the area. Perhaps the best known of Darwin’s species he collected while on the Galapagos Islands were what are now called “Darwin’s Finches".

Detailed explanation-4: -Darwin observed the Galapagos finches had a graded series of beak sizes and shapes and predicted these species were modified from one original mainland species.